#377EAD#377EAD

#377EAD is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.9% C 0.101 H 240.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#377EAD
RGB	rgb(55, 126, 173)
HSL	hsl(204, 52%, 45%)
HSV	hsv(204, 68%, 68%)
CMYK	cmyk(68.2%, 27.2%, 0%, 32.2%)
CIE-LAB	lab(50.39, -6.82, -31.43)
CIE-LCH	lch(50.39, 32.16, 257.75°)
OKLab	oklab(56.9% -0.0494 -0.0886)
OKLCH	oklch(56.9% 0.101 240.8)
XYZ	xyz(16.5763, 18.7493, 42.2724)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EAD #AD6637

analogous

#37ADA1 #377EAD #3743AD

triadic

#377EAD #AD377E #7EAD37

tetradic

#377EAD #A137AD #AD6637 #43AD37

square

#377EAD #A137AD #AD6637 #43AD37

split-complementary

#377EAD #AD3743 #ADA137

monochromatic

#193A50 #285C7F #377EAD #579CCA #86B8D8

Accessibility & contrast

On white

4.42

#377EAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#377EAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EAD

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EAD	#FFFFFF	#000000	##000000
##377EAD	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687EAF

Deuteranopia (green-blind)

#5873AC

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ead;
/* rgb */ color: rgb(55, 126, 173);
/* oklch */ color: oklch(56.9% 0.101 240.8);

Tailwind

colors: {
  custom: {
    50: '#7ba3c5',
    500: '#377ead',
    950: '#000000',
  },
}

SCSS

$custom: #377ead;
$custom-light: #7ba3c5;
$custom-dark: #000000;

JSON

{
  "hex": "#377ead",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 173
  },
  "hsl": {
    "h": 203.898,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56901,
    "c": 0.10142,
    "h": 240.8
  },
  "luminance": 0.18751
}

Semantic roles & 50–950 ramp

primary

#377EAD

secondary

#C2997D

accent

#854DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #377EAD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →