#258EFF#258EFF

#258EFF is a light, vivid cyan. Relative luminance 0.270; OKLCH L 64.9% C 0.191 H 254.4°. Best body text is #000000 at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#258EFF
RGB	rgb(37, 142, 255)
HSL	hsl(211, 100%, 57%)
HSV	hsv(211, 85%, 100%)
CMYK	cmyk(85.5%, 44.3%, 0%, 0%)
CIE-LAB	lab(58.93, 11.59, -64.10)
CIE-LCH	lch(58.93, 65.14, 280.25°)
OKLab	oklab(64.89% -0.0513 -0.1841)
OKLCH	oklch(64.89% 0.191 254.4)
XYZ	xyz(28.4792, 26.9557, 98.2903)
Luminance	0.2696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EFF #FF9625

analogous

#25FBFF #258EFF #2925FF

triadic

#258EFF #FF258E #8EFF25

tetradic

#258EFF #FF25FB #FF9625 #25FF29

square

#258EFF #FF25FB #FF9625 #25FF29

split-complementary

#258EFF #FF2925 #FBFF25

monochromatic

#0052AA #006FE7 #258EFF #62AEFF #9FCDFF

Accessibility & contrast

On white

3.29

#258EFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.39

#258EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EFF

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EFF	#FFFFFF	#000000	##000000
##258EFF	1.00	3.29	6.39	6.39
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.39	21.00	1.00	1.00
##000000	6.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5198FF

Deuteranopia (green-blind)

#1C85FD

Tritanopia (blue-blind)

#00A9BA

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #258eff;
/* rgb */ color: rgb(37, 142, 255);
/* oklch */ color: oklch(64.9% 0.191 254.4);

Tailwind

colors: {
  custom: {
    50: '#86aeff',
    500: '#258eff',
    950: '#000000',
  },
}

SCSS

$custom: #258eff;
$custom-light: #86aeff;
$custom-dark: #000000;

JSON

{
  "hex": "#258eff",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 255
  },
  "hsl": {
    "h": 211.101,
    "s": 100,
    "l": 57.255
  },
  "oklch": {
    "l": 0.64886,
    "c": 0.19109,
    "h": 254.4
  },
  "luminance": 0.26959
}

Semantic roles & 50–950 ramp

primary

#258EFF

secondary

#ECC294

accent

#9829FF

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0D1018

muted

#7E7F86

Preview Lab

Preview with #258EFF

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

Preview Lab → · Contrast checker → · Palette generator →