#257EA2#257EA2

#257EA2 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.098 H 229.8°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#257EA2
RGB	rgb(37, 126, 162)
HSL	hsl(197, 63%, 39%)
HSV	hsv(197, 77%, 64%)
CMYK	cmyk(77.2%, 22.2%, 0%, 36.5%)
CIE-LAB	lab(49.40, -13.25, -26.63)
CIE-LCH	lch(49.40, 29.74, 243.54°)
OKLab	oklab(55.81% -0.0632 -0.0748)
OKLCH	oklch(55.81% 0.098 229.8)
XYZ	xyz(14.7427, 17.9219, 36.8577)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257EA2 #A24925

analogous

#25A288 #257EA2 #2540A2

triadic

#257EA2 #A2257E #7EA225

tetradic

#257EA2 #8825A2 #A24925 #40A225

square

#257EA2 #8825A2 #A24925 #40A225

split-complementary

#257EA2 #A22540 #A28825

monochromatic

#0E313E #1A5770 #257EA2 #34A3D1 #65BADC

Accessibility & contrast

On white

4.58

#257EA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#257EA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257EA2

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257EA2	#FFFFFF	#000000	##000000
##257EA2	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA4

Deuteranopia (green-blind)

#5B70A1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #257ea2;
/* rgb */ color: rgb(37, 126, 162);
/* oklch */ color: oklch(55.8% 0.098 229.8);

Tailwind

colors: {
  custom: {
    50: '#73a3bd',
    500: '#257ea2',
    950: '#000000',
  },
}

SCSS

$custom: #257ea2;
$custom-light: #73a3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#257ea2",
  "rgb": {
    "r": 37,
    "g": 126,
    "b": 162
  },
  "hsl": {
    "h": 197.28,
    "s": 62.814,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55809,
    "c": 0.09794,
    "h": 229.8
  },
  "luminance": 0.17924
}

Semantic roles & 50–950 ramp

primary

#257EA2

secondary

#C27D61

accent

#7142E6

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #257EA2

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

Preview Lab → · Contrast checker → · Palette generator →