cyancoolCC0 survey name

Sea Blue #047495

Sea Blue is a dark, vivid cool color (#047495; HSL 194° 95% 30%). Name from the public-domain xkcd color survey (CC0), where it was contributed as “sea blue”.

Use cases: Fresh accents · Aquatic themes

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Families: Cyans · Teals

Color values

FormatValue
HEX#047495
RGBrgb(4, 116, 149)
HSLhsl(194, 95%, 30%)
HSVhsv(194, 97%, 58%)
OKLCHoklch(52.12% 0.099 226.5)
OKLaboklab(52.12% -0.0683 -0.072)
CMYKcmyk(97.3%, 22.1%, 0%, 41.6%)
XYZxyz(11.718, 14.6849, 30.6448)
CIE-LABlab(45.2, -14.9, -25.6)
CIE-LCHlch(45.2, 29.6, 239.7°)
Luminance0.147 (WCAG relative)
/* Sea Blue */ --sea-blue: #047495; color: #047495; background-color: #047495;

Source: xkcd color survey name (public domain, CC0). CSS keyword: seablue.

Collections: Jewel Tone Colors · Ocean Colors

Shade scale

Perceptual 50–950 scale, interpolated in CIE-LAB. Step 500 is the base color. Edit in the shade generator →

50
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950

OKLCH ramp (perceptually uniform, modern CSS)

50
100
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500
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800
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950

Shades (toward black)

#0e6885 #135c75 #165066 #174557 #173a49 #152f3b #13252d #101b20 #0a1114 #000000

Tints (toward white)

#36819f #518eaa #699cb4 #7fa9be #95b7c9 #aac5d4 #bfd3de #d5e2e9 #eaf0f4 #ffffff

Tones (toward gray)

#237391 #32728d #3d7188 #477084 #4e7080 #556f7c #5b6e77 #616d73 #666c6f #6b6b6b

Color harmonies

Complementary

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#047495
#952504
#047495 #952504

Analogous

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#04956D
#047495
#042C95
#04956d #047495 #042c95

Triadic

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#047495
#950474
#749504
#047495 #950474 #749504

Tetradic

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#047495
#6D0495
#952504
#2C9504
#047495 #6d0495 #952504 #2c9504

Square

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#047495
#6D0495
#952504
#2C9504
#047495 #6d0495 #952504 #2c9504

Split Complementary

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#047495
#95042C
#956D04
#047495 #95042c #956d04

Monochromatic

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#01171E
#024659
#047495
#06A2D1
#1BC6F9
#01171e #024659 #047495 #06a2d1 #1bc6f9

Accessibility & contrast

5.33
#047495 on #FFFFFF
AA text ✓AA large ✓AAA text ✗UI 3:1 ✓
3.94
#047495 on #000000
AA text ✗AA large ✓AAA text ✗UI 3:1 ✓

Best text on sea blue

5.33
#FFFFFF text

WCAG 2.1: AA needs ≥4.5:1 for normal text, ≥3:1 for large text and UI components; AAA needs ≥7:1 / ≥4.5:1. Open the contrast checker →

Color blindness preview

Simulation using the Machado et al. (2009) physiological model, severity 1.0. This is an approximation of perception — not a medical assessment.

Normal vision
Protanopia (red-blind)
#627297
Deuteranopia (green-blind)
#516695
Tritanopia (blue-blind)
#007D7F

Closest named colors

Nearest matches by CIEDE2000 perceptual distance (ΔE₀₀) across the full color database.

ColorNameΔE₀₀
Cerulean #007BA74.25
Ocean #017B924.79
Dirty Blue #3F829D6.38
Peacock Blue #0167956.77
Nice Blue #107AB06.91
Metallic Blue #4F738E7.56

Colors that go with sea blue

Top matches by hue harmony, contrast and saturation compatibility.

Lightblue #ADD8E6
3.5:1
Same hue family as sea blue (Δh 1°) — guaranteed harmony
Pale Aqua #B8FFEB
4.7:1
Analogous hue (Δh ≈31°) — neighbors on the color wheel
Beige #F5F5DC
4.8:1
Triadic harmony (Δh ≈134°) — balanced three-way contrast
Cornsilk #FFF8DC
5.0:1
Split-complementary angle (Δh ≈146°) — strong but softer than direct complement
Pale Salmon #FFB19A
3.0:1
Complementary hue (Δh ≈180°) — maximum hue contrast

Values computed from the sRGB color model. CMYK is the naive sRGB conversion without an ICC profile. RGB percentages may differ between color-managed applications.