#377FAC#377FAC

#377FAC is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.100 H 239.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#377FAC
RGB	rgb(55, 127, 172)
HSL	hsl(203, 52%, 45%)
HSV	hsv(203, 68%, 67%)
CMYK	cmyk(68%, 26.2%, 0%, 32.5%)
CIE-LAB	lab(50.65, -7.75, -30.45)
CIE-LCH	lch(50.65, 31.42, 255.72°)
OKLab	oklab(57.09% -0.0508 -0.0857)
OKLCH	oklch(57.09% 0.1 239.4)
XYZ	xyz(16.6084, 18.9678, 41.8076)
Luminance	0.1897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FAC #AC6437

analogous

#37AC9F #377FAC #3745AC

triadic

#377FAC #AC377F #7FAC37

tetradic

#377FAC #9F37AC #AC6437 #45AC37

square

#377FAC #9F37AC #AC6437 #45AC37

split-complementary

#377FAC #AC3745 #AC9F37

monochromatic

#193B4F #285D7E #377FAC #579DC9 #85B8D8

Accessibility & contrast

On white

4.38

#377FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#377FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FAC

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FAC	#FFFFFF	#000000	##000000
##377FAC	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7FAE

Deuteranopia (green-blind)

#5A73AB

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377fac;
/* rgb */ color: rgb(55, 127, 172);
/* oklch */ color: oklch(57.1% 0.100 239.4);

Tailwind

colors: {
  custom: {
    50: '#7ba4c5',
    500: '#377fac',
    950: '#000000',
  },
}

SCSS

$custom: #377fac;
$custom-light: #7ba4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#377fac",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 172
  },
  "hsl": {
    "h": 203.077,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5709,
    "c": 0.09964,
    "h": 239.4
  },
  "luminance": 0.1897
}

Semantic roles & 50–950 ramp

primary

#377FAC

secondary

#C2977D

accent

#834DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FAC

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

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