#257DA2#257DA2

#257DA2 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.6% C 0.098 H 230.8°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#257DA2
RGB	rgb(37, 125, 162)
HSL	hsl(198, 63%, 39%)
HSV	hsv(198, 77%, 64%)
CMYK	cmyk(77.2%, 22.8%, 0%, 36.5%)
CIE-LAB	lab(49.09, -12.69, -27.11)
CIE-LCH	lch(49.09, 29.93, 244.92°)
OKLab	oklab(55.56% -0.0622 -0.0762)
OKLCH	oklch(55.56% 0.098 230.8)
XYZ	xyz(14.6155, 17.6674, 36.8153)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257DA2 #A24A25

analogous

#25A289 #257DA2 #253FA2

triadic

#257DA2 #A2257D #7DA225

tetradic

#257DA2 #8925A2 #A24A25 #3FA225

square

#257DA2 #8925A2 #A24A25 #3FA225

split-complementary

#257DA2 #A2253F #A28925

monochromatic

#0E303E #1A5770 #257DA2 #34A2D1 #65B9DC

Accessibility & contrast

On white

4.63

#257DA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#257DA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #257DA2

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257DA2	#FFFFFF	#000000	##FFFFFF
##257DA2	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7BA4

Deuteranopia (green-blind)

#596FA1

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257da2;
/* rgb */ color: rgb(37, 125, 162);
/* oklch */ color: oklch(55.6% 0.098 230.8);

Tailwind

colors: {
  custom: {
    50: '#73a2bd',
    500: '#257da2',
    950: '#000000',
  },
}

SCSS

$custom: #257da2;
$custom-light: #73a2bd;
$custom-dark: #000000;

JSON

{
  "hex": "#257da2",
  "rgb": {
    "r": 37,
    "g": 125,
    "b": 162
  },
  "hsl": {
    "h": 197.76,
    "s": 62.814,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55561,
    "c": 0.09838,
    "h": 230.8
  },
  "luminance": 0.17669
}

Semantic roles & 50–950 ramp

primary

#257DA2

secondary

#C27E61

accent

#7242E6

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257DA2

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

Preview Lab → · Contrast checker → · Palette generator →