#257183#257183

#257183 is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.1% C 0.077 H 216.8°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#257183
RGB	rgb(37, 113, 131)
HSL	hsl(191, 56%, 33%)
HSV	hsv(191, 72%, 51%)
CMYK	cmyk(71.8%, 13.7%, 0%, 48.6%)
CIE-LAB	lab(44.00, -16.74, -16.64)
CIE-LCH	lch(44.00, 23.60, 224.83°)
OKLab	oklab(51.06% -0.062 -0.0464)
OKLCH	oklch(51.06% 0.077 216.8)
XYZ	xyz(10.7631, 13.8410, 23.5727)
Luminance	0.1384 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257183 #833725

analogous

#258366 #257183 #254283

triadic

#257183 #832571 #718325

tetradic

#257183 #662583 #833725 #428325

square

#257183 #662583 #833725 #428325

split-complementary

#257183 #832542 #836625

monochromatic

#0A1F24 #184853 #257183 #329AB3 #54B7CF

Accessibility & contrast

On white

5.57

#257183 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#257183 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257183

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257183	#FFFFFF	#000000	##FFFFFF
##257183	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#656E84

Deuteranopia (green-blind)

#586483

Tritanopia (blue-blind)

#007777

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #257183;
/* rgb */ color: rgb(37, 113, 131);
/* oklch */ color: oklch(51.1% 0.077 216.8);

Tailwind

colors: {
  custom: {
    50: '#6d9aa7',
    500: '#257183',
    950: '#000000',
  },
}

SCSS

$custom: #257183;
$custom-light: #6d9aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#257183",
  "rgb": {
    "r": 37,
    "g": 113,
    "b": 131
  },
  "hsl": {
    "h": 191.489,
    "s": 55.952,
    "l": 32.941
  },
  "oklch": {
    "l": 0.51061,
    "c": 0.07742,
    "h": 216.8
  },
  "luminance": 0.13842
}

Semantic roles & 50–950 ramp

primary

#257183

secondary

#B36451

accent

#6549DF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E0F

muted

#7B7E7F

Preview Lab

Preview with #257183

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

Preview Lab → · Contrast checker → · Palette generator →