#377FBE#377FBE

#377FBE is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.121 H 248.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#377FBE
RGB	rgb(55, 127, 190)
HSL	hsl(208, 55%, 48%)
HSV	hsv(208, 71%, 75%)
CMYK	cmyk(71.1%, 33.2%, 0%, 25.5%)
CIE-LAB	lab(51.50, -1.43, -39.48)
CIE-LCH	lch(51.50, 39.50, 267.92°)
OKLab	oklab(58.05% -0.0451 -0.1119)
OKLCH	oklch(58.05% 0.121 248)
XYZ	xyz(18.4557, 19.7067, 51.5363)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FBE #BE7637

analogous

#37BEB9 #377FBE #373BBE

triadic

#377FBE #BE377F #7FBE37

tetradic

#377FBE #B937BE #BE7637 #3BBE37

square

#377FBE #B937BE #BE7637 #3BBE37

split-complementary

#377FBE #BE373B #BEB937

monochromatic

#1C405F #295F8F #377FBE #619DD1 #90BADF

Accessibility & contrast

On white

4.25

#377FBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#377FBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FBE

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FBE	#FFFFFF	#000000	##000000
##377FBE	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C1

Deuteranopia (green-blind)

#5075BD

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377fbe;
/* rgb */ color: rgb(55, 127, 190);
/* oklch */ color: oklch(58.0% 0.121 248.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#377fbe",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 190
  },
  "hsl": {
    "h": 208,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58045,
    "c": 0.12071,
    "h": 248
  },
  "luminance": 0.19709
}

Semantic roles & 50–950 ramp

primary

#377FBE

secondary

#CAA687

accent

#8F49DE

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #377FBE

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

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