#377FBF#377FBF

#377FBF is a mid, vivid cyan. Relative luminance 0.198; OKLCH L 58.1% C 0.122 H 248.4°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#377FBF
RGB	rgb(55, 127, 191)
HSL	hsl(208, 55%, 48%)
HSV	hsv(208, 71%, 75%)
CMYK	cmyk(71.2%, 33.5%, 0%, 25.1%)
CIE-LAB	lab(51.55, -1.07, -39.97)
CIE-LCH	lch(51.55, 39.99, 268.46°)
OKLab	oklab(58.1% -0.0449 -0.1134)
OKLCH	oklch(58.1% 0.122 248.4)
XYZ	xyz(18.5653, 19.7505, 52.1139)
Luminance	0.1975 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FBF #BF7737

analogous

#37BFBB #377FBF #373BBF

triadic

#377FBF #BF377F #7FBF37

tetradic

#377FBF #BB37BF #BF7737 #3BBF37

square

#377FBF #BB37BF #BF7737 #3BBF37

split-complementary

#377FBF #BF373B #BFBB37

monochromatic

#1C4060 #295F8F #377FBF #629DD2 #91BBDF

Accessibility & contrast

On white

4.24

#377FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#377FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FBF

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FBF	#FFFFFF	#000000	##000000
##377FBF	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6282C2

Deuteranopia (green-blind)

#4F75BE

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377fbf;
/* rgb */ color: rgb(55, 127, 191);
/* oklch */ color: oklch(58.1% 0.122 248.4);

Tailwind

colors: {
  custom: {
    50: '#7ea3d2',
    500: '#377fbf',
    950: '#000000',
  },
}

SCSS

$custom: #377fbf;
$custom-light: #7ea3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#377fbf",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 191
  },
  "hsl": {
    "h": 208.235,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.58101,
    "c": 0.12195,
    "h": 248.4
  },
  "luminance": 0.19753
}

Semantic roles & 50–950 ramp

primary

#377FBF

secondary

#CAA788

accent

#9049DF

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #377FBF

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

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