#258EB1#258EB1

#258EB1 is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 60.5% C 0.105 H 225.6°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#258EB1
RGB	rgb(37, 142, 177)
HSL	hsl(195, 65%, 42%)
HSV	hsv(195, 79%, 69%)
CMYK	cmyk(79.1%, 19.8%, 0%, 30.6%)
CIE-LAB	lab(54.98, -16.87, -26.64)
CIE-LCH	lch(54.98, 31.53, 237.65°)
OKLab	oklab(60.48% -0.0732 -0.0748)
OKLCH	oklch(60.48% 0.105 225.6)
XYZ	xyz(18.3685, 22.9114, 45.0407)
Luminance	0.2291 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EB1 #B14825

analogous

#25B18E #258EB1 #2548B1

triadic

#258EB1 #B1258E #8EB125

tetradic

#258EB1 #8E25B1 #B14825 #48B125

square

#258EB1 #8E25B1 #B14825 #48B125

split-complementary

#258EB1 #B12548 #B18E25

monochromatic

#103D4C #1A657E #258EB1 #3DB0D6 #6FC5E1

Accessibility & contrast

On white

3.76

#258EB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#258EB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EB1

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EB1	#FFFFFF	#000000	##000000
##258EB1	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8BB3

Deuteranopia (green-blind)

#687EB1

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258eb1;
/* rgb */ color: rgb(37, 142, 177);
/* oklch */ color: oklch(60.5% 0.105 225.6);

Tailwind

colors: {
  custom: {
    50: '#77afc8',
    500: '#258eb1',
    950: '#000000',
  },
}

SCSS

$custom: #258eb1;
$custom-light: #77afc8;
$custom-dark: #000000;

JSON

{
  "hex": "#258eb1",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 177
  },
  "hsl": {
    "h": 195,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.60483,
    "c": 0.10464,
    "h": 225.6
  },
  "luminance": 0.22914
}

Semantic roles & 50–950 ramp

primary

#258EB1

secondary

#C8826A

accent

#6A3FE8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258EB1

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

Preview Lab → · Contrast checker → · Palette generator →