cyancoolCSS named color

Deepskyblue #00BFFF

Deepskyblue is a medium, highly saturated cool-toned color with a cool cast. Defined as one of the 148 CSS named colors in the W3C CSS Color Module Level 4 specification.

Use cases: Fresh accents · Aquatic themes

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Families: Cyans

Color values

FormatValue
HEX#00BFFF
RGBrgb(0, 191, 255)
HSLhsl(195, 100%, 50%)
HSVhsv(195, 100%, 100%)
OKLCHoklch(75.54% 0.153 231.6)
OKLaboklab(75.54% -0.0952 -0.1203)
CMYKcmyk(100%, 25.1%, 0%, 0%)
XYZxyz(36.6733, 44.4766, 101.2403)
CIE-LABlab(72.5, -17.7, -42.5)
CIE-LCHlch(72.5, 46.1, 247.5°)
Luminance0.445 (WCAG relative)
/* Deepskyblue */ --deepskyblue: #00bfff; color: #00bfff; background-color: #00bfff;

Source: W3C CSS named color. CSS keyword: deepskyblue.

Collections: Vibrant Colors · Neon Colors · Tropical 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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950

Shades (toward black)

#15aae2 #1e95c6 #2181ab #226e91 #215b77 #1f495e #1b3747 #162730 #10171c #000000

Tints (toward white)

#4ac5ff #6accff #83d2ff #98d8ff #abdfff #bee5ff #cfebff #dff2ff #eff8ff #ffffff

Tones (toward gray)

#3fbef7 #58bcef #6abbe8 #79bae0 #85b8d8 #90b7d1 #9ab6c9 #a3b5c1 #abb3ba #b2b2b2

Color harmonies

Complementary

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#00BFFF
#FF4000
#00bfff #ff4000

Analogous

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#00FFC0
#00BFFF
#003FFF
#00ffc0 #00bfff #003fff

Triadic

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#00BFFF
#FF00BF
#BFFF00
#00bfff #ff00bf #bfff00

Tetradic

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#00BFFF
#C000FF
#FF4000
#3FFF00
#00bfff #c000ff #ff4000 #3fff00

Square

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#00BFFF
#C000FF
#FF4000
#3FFF00
#00bfff #c000ff #ff4000 #3fff00

Split Complementary

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#00BFFF
#FF003F
#FFC000
#00bfff #ff003f #ffc000

Monochromatic

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#006385
#0091C2
#00BFFF
#3DCEFF
#7ADEFF
#006385 #0091c2 #00bfff #3dceff #7adeff

Accessibility & contrast

2.12
#00BFFF on #FFFFFF
AA text ✗AA large ✗AAA text ✗UI 3:1 ✗
9.90
#00BFFF on #000000
AA text ✓AA large ✓AAA text ✓UI 3:1 ✓

Best text on deepskyblue

9.90
#000000 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)
#9EBDFF
Deuteranopia (green-blind)
#81A9FE
Tritanopia (blue-blind)
#00D0D5

Closest named colors

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

ColorNameΔE₀₀
Sky #82CAFC7.40
Lightskyblue #87CEFA7.89
Baby Blue #89CFF08.91
Sky Blue #87CEEB9.43
Light Blue #95D0FC9.82
Neon Blue #04D9FF10.02

Colors that go with deepskyblue

Top matches by hue harmony, contrast and saturation compatibility.

Prussian Blue #004577
4.7:1
Same hue family as deepskyblue (Δh 10°) — guaranteed harmony
Navy Blue #1B2A4A
6.7:1
Analogous hue (Δh ≈26°) — neighbors on the color wheel
Rich Purple #720058
5.3:1
Triadic harmony (Δh ≈119°) — balanced three-way contrast
Burgundy #800020
5.1:1
Split-complementary angle (Δh ≈150°) — strong but softer than direct complement
Terracotta #C96F4A
1.7:1
Complementary hue (Δh ≈178°) — 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.