#258CBC#258CBC

#258CBC is a mid, moderate cyan. Relative luminance 0.228; OKLCH L 60.5% C 0.115 H 234.3°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#258CBC
RGB	rgb(37, 140, 188)
HSL	hsl(199, 67%, 44%)
HSV	hsv(199, 80%, 74%)
CMYK	cmyk(80.3%, 25.5%, 0%, 26.3%)
CIE-LAB	lab(54.84, -11.91, -33.13)
CIE-LCH	lch(54.84, 35.20, 250.23°)
OKLab	oklab(60.53% -0.0673 -0.0935)
OKLCH	oklch(60.53% 0.115 234.3)
XYZ	xyz(19.2145, 22.7779, 50.9511)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CBC #BC5525

analogous

#25BCA1 #258CBC #2541BC

triadic

#258CBC #BC258C #8CBC25

tetradic

#258CBC #A125BC #BC5525 #41BC25

square

#258CBC #A125BC #BC5525 #41BC25

split-complementary

#258CBC #BC2541 #BCA125

monochromatic

#114056 #1B6689 #258CBC #44AADA #77C2E4

Accessibility & contrast

On white

3.78

#258CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#258CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CBC

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CBC	#FFFFFF	#000000	##000000
##258CBC	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748BBE

Deuteranopia (green-blind)

#607DBB

Tritanopia (blue-blind)

#00999C

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #258cbc;
/* rgb */ color: rgb(37, 140, 188);
/* oklch */ color: oklch(60.5% 0.115 234.3);

Tailwind

colors: {
  custom: {
    50: '#78add0',
    500: '#258cbc',
    950: '#000000',
  },
}

SCSS

$custom: #258cbc;
$custom-light: #78add0;
$custom-dark: #000000;

JSON

{
  "hex": "#258cbc",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 188
  },
  "hsl": {
    "h": 199.073,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.60529,
    "c": 0.1152,
    "h": 234.3
  },
  "luminance": 0.2278
}

Semantic roles & 50–950 ramp

primary

#258CBC

secondary

#CC8E71

accent

#753EEA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1014

muted

#7C7F82

Preview Lab

Preview with #258CBC

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

Preview Lab → · Contrast checker → · Palette generator →