#257E9C#257E9C

#257E9C is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.093 H 225.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#257E9C
RGB	rgb(37, 126, 156)
HSL	hsl(195, 62%, 38%)
HSV	hsv(195, 76%, 61%)
CMYK	cmyk(76.3%, 19.2%, 0%, 38.8%)
CIE-LAB	lab(49.15, -15.36, -23.52)
CIE-LCH	lch(49.15, 28.09, 236.85°)
OKLab	oklab(55.52% -0.0655 -0.0659)
OKLCH	oklch(55.52% 0.093 225.2)
XYZ	xyz(14.2221, 17.7136, 34.1156)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257E9C #9C4325

analogous

#259C7E #257E9C #25429C

triadic

#257E9C #9C257E #7E9C25

tetradic

#257E9C #7E259C #9C4325 #429C25

square

#257E9C #7E259C #9C4325 #429C25

split-complementary

#257E9C #9C2542 #9C7E25

monochromatic

#0E2E39 #19566B #257E9C #31A6CD #62BBDA

Accessibility & contrast

On white

4.62

#257E9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#257E9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257E9C

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257E9C	#FFFFFF	#000000	##FFFFFF
##257E9C	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7B9E

Deuteranopia (green-blind)

#5D709C

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257e9c;
/* rgb */ color: rgb(37, 126, 156);
/* oklch */ color: oklch(55.5% 0.093 225.2);

Tailwind

colors: {
  custom: {
    50: '#72a3b9',
    500: '#257e9c',
    950: '#000000',
  },
}

SCSS

$custom: #257e9c;
$custom-light: #72a3b9;
$custom-dark: #000000;

JSON

{
  "hex": "#257e9c",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 156
  },
  "hsl": {
    "h": 195.126,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.55522,
    "c": 0.0929,
    "h": 225.2
  },
  "luminance": 0.17715
}

Semantic roles & 50–950 ramp

primary

#257E9C

secondary

#BF765E

accent

#6C43E5

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #257E9C

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

Preview Lab → · Contrast checker → · Palette generator →