#257D9C#257D9C

#257D9C is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.093 H 226.2°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#257D9C
RGB	rgb(37, 125, 156)
HSL	hsl(196, 62%, 38%)
HSV	hsv(196, 76%, 61%)
CMYK	cmyk(76.3%, 19.9%, 0%, 38.8%)
CIE-LAB	lab(48.83, -14.80, -24.00)
CIE-LCH	lch(48.83, 28.20, 238.34°)
OKLab	oklab(55.27% -0.0644 -0.0673)
OKLCH	oklch(55.27% 0.093 226.2)
XYZ	xyz(14.0949, 17.4592, 34.0731)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257D9C #9C4425

analogous

#259C7F #257D9C #25429C

triadic

#257D9C #9C257D #7D9C25

tetradic

#257D9C #7F259C #9C4425 #429C25

square

#257D9C #7F259C #9C4425 #429C25

split-complementary

#257D9C #9C2542 #9C7F25

monochromatic

#0E2E39 #19556B #257D9C #31A5CD #62BADA

Accessibility & contrast

On white

4.67

#257D9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#257D9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257D9C

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257D9C	#FFFFFF	#000000	##FFFFFF
##257D9C	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9E

Deuteranopia (green-blind)

#5C6F9C

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257d9c;
/* rgb */ color: rgb(37, 125, 156);
/* oklch */ color: oklch(55.3% 0.093 226.2);

Tailwind

colors: {
  custom: {
    50: '#72a2b9',
    500: '#257d9c',
    950: '#000000',
  },
}

SCSS

$custom: #257d9c;
$custom-light: #72a2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#257d9c",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 156
  },
  "hsl": {
    "h": 195.63,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.55271,
    "c": 0.09318,
    "h": 226.2
  },
  "luminance": 0.17461
}

Semantic roles & 50–950 ramp

primary

#257D9C

secondary

#BF775E

accent

#6D43E5

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #257D9C

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

Preview Lab → · Contrast checker → · Palette generator →