#257ABD#257ABD

#257ABD is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.130 H 247.1°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#257ABD
RGB	rgb(37, 122, 189)
HSL	hsl(206, 67%, 44%)
HSV	hsv(206, 80%, 74%)
CMYK	cmyk(80.4%, 35.4%, 0%, 25.9%)
CIE-LAB	lab(49.48, -1.05, -42.14)
CIE-LCH	lch(49.48, 42.15, 268.58°)
OKLab	oklab(56.29% -0.0506 -0.12)
OKLCH	oklch(56.29% 0.13 247.1)
XYZ	xyz(16.9042, 17.9844, 50.7147)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257ABD #BD6825

analogous

#25BDB4 #257ABD #252EBD

triadic

#257ABD #BD257A #7ABD25

tetradic

#257ABD #B425BD #BD6825 #2EBD25

square

#257ABD #B425BD #BD6825 #2EBD25

split-complementary

#257ABD #BD252E #BDB425

monochromatic

#113857 #1B598A #257ABD #4598DB #78B5E5

Accessibility & contrast

On white

4.57

#257ABD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#257ABD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257ABD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257ABD	#FFFFFF	#000000	##000000
##257ABD	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DC0

Deuteranopia (green-blind)

#446FBC

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #257abd;
/* rgb */ color: rgb(37, 122, 189);
/* oklch */ color: oklch(56.3% 0.130 247.1);

Tailwind

colors: {
  custom: {
    50: '#78a0d1',
    500: '#257abd',
    950: '#000000',
  },
}

SCSS

$custom: #257abd;
$custom-light: #78a0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#257abd",
  "rgb": {
    "r": 37,
    "g": 122,
    "b": 189
  },
  "hsl": {
    "h": 206.447,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56294,
    "c": 0.13022,
    "h": 247.1
  },
  "luminance": 0.17987
}

Semantic roles & 50–950 ramp

primary

#257ABD

secondary

#CC9A72

accent

#8A3EEA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #257ABD

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

Preview Lab → · Contrast checker → · Palette generator →