#377DC3#377DC3

#377DC3 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.9% C 0.129 H 251.0°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#377DC3
RGB	rgb(55, 125, 195)
HSL	hsl(210, 56%, 49%)
HSV	hsv(210, 72%, 76%)
CMYK	cmyk(71.8%, 35.9%, 0%, 23.5%)
CIE-LAB	lab(51.17, 1.56, -42.87)
CIE-LCH	lch(51.17, 42.89, 272.09°)
OKLab	oklab(57.87% -0.0418 -0.1219)
OKLCH	oklch(57.87% 0.129 251)
XYZ	xyz(18.7558, 19.4175, 54.3787)
Luminance	0.1942 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DC3 #C37D37

analogous

#37C3C3 #377DC3 #3737C3

triadic

#377DC3 #C3377D #7DC337

tetradic

#377DC3 #C337C3 #C37D37 #37C337

square

#377DC3 #C337C3 #C37D37 #37C337

split-complementary

#377DC3 #C33737 #C3C337

monochromatic

#1C4064 #2A5E93 #377DC3 #649CD3 #94BAE1

Accessibility & contrast

On white

4.30

#377DC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#377DC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DC3

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DC3	#FFFFFF	#000000	##000000
##377DC3	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C6

Deuteranopia (green-blind)

#4974C2

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377dc3;
/* rgb */ color: rgb(55, 125, 195);
/* oklch */ color: oklch(57.9% 0.129 251.0);

Tailwind

colors: {
  custom: {
    50: '#7fa2d5',
    500: '#377dc3',
    950: '#000000',
  },
}

SCSS

$custom: #377dc3;
$custom-light: #7fa2d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377dc3",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 195
  },
  "hsl": {
    "h": 210,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57868,
    "c": 0.12886,
    "h": 251
  },
  "luminance": 0.1942
}

Semantic roles & 50–950 ramp

primary

#377DC3

secondary

#CCAB8A

accent

#9449DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #377DC3

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

Preview Lab → · Contrast checker → · Palette generator →