#257CBD#257CBD

#257CBD is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.128 H 245.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#257CBD
RGB	rgb(37, 124, 189)
HSL	hsl(206, 67%, 44%)
HSV	hsv(206, 80%, 74%)
CMYK	cmyk(80.4%, 34.4%, 0%, 25.9%)
CIE-LAB	lab(50.07, -2.25, -41.20)
CIE-LCH	lch(50.07, 41.26, 266.88°)
OKLab	oklab(56.76% -0.0524 -0.1172)
OKLCH	oklch(56.76% 0.128 245.9)
XYZ	xyz(17.1524, 18.4806, 50.7974)
Luminance	0.1848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#257CBD #BD6625

analogous

#25BDB2 #257CBD #2530BD

triadic

#257CBD #BD257C #7CBD25

tetradic

#257CBD #B225BD #BD6625 #30BD25

square

#257CBD #B225BD #BD6625 #30BD25

split-complementary

#257CBD #BD2530 #BDB225

monochromatic

#113957 #1B5A8A #257CBD #459ADB #78B6E5

Accessibility & contrast

On white

4.47

#257CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#257CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #257CBD

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##257CBD	#FFFFFF	#000000	##000000
##257CBD	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC0

Deuteranopia (green-blind)

#4871BC

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #257cbd;
/* rgb */ color: rgb(37, 124, 189);
/* oklch */ color: oklch(56.8% 0.128 245.9);

Tailwind

colors: {
  custom: {
    50: '#78a1d1',
    500: '#257cbd',
    950: '#000000',
  },
}

SCSS

$custom: #257cbd;
$custom-light: #78a1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#257cbd",
  "rgb": {
    "r": 37,
    "g": 124,
    "b": 189
  },
  "hsl": {
    "h": 205.658,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56764,
    "c": 0.12836,
    "h": 245.9
  },
  "luminance": 0.18483
}

Semantic roles & 50–950 ramp

primary

#257CBD

secondary

#CC9872

accent

#873EEA

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #257CBD

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

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