#257FC4#257FC4

#257FC4 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.134 H 246.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#257FC4
RGB	rgb(37, 127, 196)
HSL	hsl(206, 68%, 46%)
HSV	hsv(206, 81%, 77%)
CMYK	cmyk(81.1%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(51.33, -1.44, -43.22)
CIE-LCH	lch(51.33, 43.24, 268.10°)
OKLab	oklab(57.87% -0.053 -0.1231)
OKLCH	oklch(57.87% 0.134 246.7)
XYZ	xyz(18.3123, 19.5553, 55.0233)
Luminance	0.1956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257FC4 #C46A25

analogous

#25C4B9 #257FC4 #252FC4

triadic

#257FC4 #C4257F #7FC425

tetradic

#257FC4 #B925C4 #C46A25 #2FC425

square

#257FC4 #B925C4 #C46A25 #2FC425

split-complementary

#257FC4 #C4252F #C4B925

monochromatic

#123C5D #1B5E91 #257FC4 #499DDD #7DB9E6

Accessibility & contrast

On white

4.28

#257FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#257FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257FC4

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257FC4	#FFFFFF	#000000	##000000
##257FC4	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E82C7

Deuteranopia (green-blind)

#4774C3

Tritanopia (blue-blind)

#009098

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #257fc4;
/* rgb */ color: rgb(37, 127, 196);
/* oklch */ color: oklch(57.9% 0.134 246.7);

Tailwind

colors: {
  custom: {
    50: '#79a3d6',
    500: '#257fc4',
    950: '#000000',
  },
}

SCSS

$custom: #257fc4;
$custom-light: #79a3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#257fc4",
  "rgb": {
    "r": 37,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 206.038,
    "s": 68.24,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57873,
    "c": 0.134,
    "h": 246.7
  },
  "luminance": 0.19558
}

Semantic roles & 50–950 ramp

primary

#257FC4

secondary

#CF9D76

accent

#883DEB

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #257FC4

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

Preview Lab → · Contrast checker → · Palette generator →