#257FB0#257FB0

#257FB0 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.111 H 237.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#257FB0
RGB	rgb(37, 127, 176)
HSL	hsl(201, 65%, 42%)
HSV	hsv(201, 79%, 69%)
CMYK	cmyk(79%, 27.8%, 0%, 31%)
CIE-LAB	lab(50.34, -8.81, -33.29)
CIE-LCH	lch(50.34, 34.43, 255.18°)
OKLab	oklab(56.77% -0.0592 -0.0941)
OKLCH	oklch(56.77% 0.111 237.8)
XYZ	xyz(16.1857, 18.7047, 43.8232)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257FB0 #B05625

analogous

#25B09C #257FB0 #253AB0

triadic

#257FB0 #B0257F #7FB025

tetradic

#257FB0 #9C25B0 #B05625 #3AB025

square

#257FB0 #9C25B0 #B05625 #3AB025

split-complementary

#257FB0 #B0253A #B09C25

monochromatic

#10364B #1A5B7D #257FB0 #3CA0D6 #6FB9E1

Accessibility & contrast

On white

4.43

#257FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#257FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257FB0

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257FB0	#FFFFFF	#000000	##000000
##257FB0	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB2

Deuteranopia (green-blind)

#5572AF

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #257fb0;
/* rgb */ color: rgb(37, 127, 176);
/* oklch */ color: oklch(56.8% 0.111 237.8);

Tailwind

colors: {
  custom: {
    50: '#75a4c8',
    500: '#257fb0',
    950: '#000000',
  },
}

SCSS

$custom: #257fb0;
$custom-light: #75a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#257fb0",
  "rgb": {
    "r": 37,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 201.151,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56765,
    "c": 0.11116,
    "h": 237.8
  },
  "luminance": 0.18707
}

Semantic roles & 50–950 ramp

primary

#257FB0

secondary

#C78B6A

accent

#7B40E8

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #257FB0

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

Preview Lab → · Contrast checker → · Palette generator →