#257BA9#257BA9

#257BA9 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.4% C 0.106 H 237.2°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#257BA9
RGB	rgb(37, 123, 169)
HSL	hsl(201, 64%, 40%)
HSV	hsv(201, 78%, 66%)
CMYK	cmyk(78.1%, 27.2%, 0%, 33.7%)
CIE-LAB	lab(48.79, -9.03, -31.66)
CIE-LCH	lch(48.79, 32.92, 254.08°)
OKLab	oklab(55.42% -0.0577 -0.0894)
OKLCH	oklch(55.42% 0.106 237.2)
XYZ	xyz(15.0045, 17.4220, 40.1004)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257BA9 #A95325

analogous

#25A995 #257BA9 #2539A9

triadic

#257BA9 #A9257B #7BA925

tetradic

#257BA9 #9525A9 #A95325 #39A925

square

#257BA9 #9525A9 #A95325 #39A925

split-complementary

#257BA9 #A92539 #A99525

monochromatic

#0F3245 #1A5677 #257BA9 #389DD3 #6AB6DE

Accessibility & contrast

On white

4.68

#257BA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#257BA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #257BA9

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257BA9	#FFFFFF	#000000	##FFFFFF
##257BA9	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#657BAB

Deuteranopia (green-blind)

#536EA8

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #257ba9;
/* rgb */ color: rgb(37, 123, 169);
/* oklch */ color: oklch(55.4% 0.106 237.2);

Tailwind

colors: {
  custom: {
    50: '#74a1c2',
    500: '#257ba9',
    950: '#000000',
  },
}

SCSS

$custom: #257ba9;
$custom-light: #74a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#257ba9",
  "rgb": {
    "r": 37,
    "g": 123,
    "b": 169
  },
  "hsl": {
    "h": 200.909,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.55423,
    "c": 0.10643,
    "h": 237.2
  },
  "luminance": 0.17424
}

Semantic roles & 50–950 ramp

primary

#257BA9

secondary

#C48665

accent

#7B41E7

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #257BA9

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

Preview Lab → · Contrast checker → · Palette generator →