#377DAB#377DAB

#377DAB is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.6% C 0.100 H 240.6°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#377DAB
RGB	rgb(55, 125, 171)
HSL	hsl(204, 51%, 44%)
HSV	hsv(204, 68%, 67%)
CMYK	cmyk(67.8%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(50.00, -6.93, -30.89)
CIE-LCH	lch(50.00, 31.66, 257.35°)
OKLab	oklab(56.56% -0.049 -0.087)
OKLCH	oklch(56.56% 0.1 240.6)
XYZ	xyz(16.2570, 18.4180, 41.2184)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DAB #AB6537

analogous

#37AB9F #377DAB #3743AB

triadic

#377DAB #AB377D #7DAB37

tetradic

#377DAB #9F37AB #AB6537 #43AB37

square

#377DAB #9F37AB #AB6537 #43AB37

split-complementary

#377DAB #AB3743 #AB9F37

monochromatic

#19394E #285B7D #377DAB #569BC9 #85B7D8

Accessibility & contrast

On white

4.48

#377DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#377DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DAB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DAB	#FFFFFF	#000000	##000000
##377DAB	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687DAD

Deuteranopia (green-blind)

#5872AA

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377dab;
/* rgb */ color: rgb(55, 125, 171);
/* oklch */ color: oklch(56.6% 0.100 240.6);

Tailwind

colors: {
  custom: {
    50: '#7ba2c4',
    500: '#377dab',
    950: '#000000',
  },
}

SCSS

$custom: #377dab;
$custom-light: #7ba2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#377dab",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 203.793,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.5656,
    "c": 0.09986,
    "h": 240.6
  },
  "luminance": 0.1842
}

Semantic roles & 50–950 ramp

primary

#377DAB

secondary

#C1987C

accent

#854DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DAB

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

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