#257DBC#257DBC

#257DBC is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 56.9% C 0.126 H 244.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#257DBC
RGB	rgb(37, 125, 188)
HSL	hsl(205, 67%, 44%)
HSV	hsv(205, 80%, 74%)
CMYK	cmyk(80.3%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(50.32, -3.22, -40.23)
CIE-LCH	lch(50.32, 40.36, 265.42°)
OKLab	oklab(56.94% -0.0535 -0.1143)
OKLCH	oklch(56.94% 0.126 244.9)
XYZ	xyz(17.1701, 18.6893, 50.2696)
Luminance	0.1869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257DBC #BC6425

analogous

#25BCB0 #257DBC #2532BC

triadic

#257DBC #BC257D #7DBC25

tetradic

#257DBC #B025BC #BC6425 #32BC25

square

#257DBC #B025BC #BC6425 #32BC25

split-complementary

#257DBC #BC2532 #BCB025

monochromatic

#113956 #1B5B89 #257DBC #449CDA #77B7E4

Accessibility & contrast

On white

4.43

#257DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#257DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257DBC

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257DBC	#FFFFFF	#000000	##000000
##257DBC	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4A72BB

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #257dbc;
/* rgb */ color: rgb(37, 125, 188);
/* oklch */ color: oklch(56.9% 0.126 244.9);

Tailwind

colors: {
  custom: {
    50: '#78a2d0',
    500: '#257dbc',
    950: '#000000',
  },
}

SCSS

$custom: #257dbc;
$custom-light: #78a2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#257dbc",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 205.033,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56943,
    "c": 0.12627,
    "h": 244.9
  },
  "luminance": 0.18691
}

Semantic roles & 50–950 ramp

primary

#257DBC

secondary

#CC9771

accent

#863EEA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0F14

muted

#7C7E82

Preview Lab

Preview with #257DBC

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

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