#377D9F#377D9F

#377D9F is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.0% C 0.087 H 232.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#377D9F
RGB	rgb(55, 125, 159)
HSL	hsl(200, 49%, 42%)
HSV	hsv(200, 65%, 62%)
CMYK	cmyk(65.4%, 21.4%, 0%, 37.6%)
CIE-LAB	lab(49.47, -11.03, -24.72)
CIE-LCH	lch(49.47, 27.07, 245.97°)
OKLab	oklab(55.97% -0.0533 -0.0692)
OKLCH	oklch(55.97% 0.087 232.4)
XYZ	xyz(15.1647, 17.9811, 35.4657)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377D9F #9F5937

analogous

#379F8D #377D9F #37499F

triadic

#377D9F #9F377D #7D9F37

tetradic

#377D9F #8D379F #9F5937 #499F37

square

#377D9F #8D379F #9F5937 #499F37

split-complementary

#377D9F #9F3749 #9F8D37

monochromatic

#183644 #275972 #377D9F #519DC3 #7EB7D2

Accessibility & contrast

On white

4.57

#377D9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#377D9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377D9F

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377D9F	#FFFFFF	#000000	##000000
##377D9F	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA1

Deuteranopia (green-blind)

#5E719E

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377d9f;
/* rgb */ color: rgb(55, 125, 159);
/* oklch */ color: oklch(56.0% 0.087 232.4);

Tailwind

colors: {
  custom: {
    50: '#79a2bb',
    500: '#377d9f',
    950: '#000000',
  },
}

SCSS

$custom: #377d9f;
$custom-light: #79a2bb;
$custom-dark: #000000;

JSON

{
  "hex": "#377d9f",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 159
  },
  "hsl": {
    "h": 199.615,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.55968,
    "c": 0.08735,
    "h": 232.4
  },
  "luminance": 0.17983
}

Semantic roles & 50–950 ramp

primary

#377D9F

secondary

#BC8D76

accent

#7C50D8

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377D9F

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

Preview Lab → · Contrast checker → · Palette generator →