#258EB4#258EB4

#258EB4 is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.6% C 0.107 H 227.7°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#258EB4
RGB	rgb(37, 142, 180)
HSL	hsl(196, 66%, 43%)
HSV	hsv(196, 79%, 71%)
CMYK	cmyk(79.4%, 21.1%, 0%, 29.4%)
CIE-LAB	lab(55.11, -15.83, -28.16)
CIE-LCH	lch(55.11, 32.31, 240.65°)
OKLab	oklab(60.62% -0.0721 -0.0791)
OKLCH	oklch(60.62% 0.107 227.7)
XYZ	xyz(18.6708, 23.0323, 46.6328)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258EB4 #B44B25

analogous

#25B493 #258EB4 #2546B4

triadic

#258EB4 #B4258E #8EB425

tetradic

#258EB4 #9325B4 #B44B25 #46B425

square

#258EB4 #9325B4 #B44B25 #46B425

split-complementary

#258EB4 #B42546 #B49325

monochromatic

#103E4E #1B6681 #258EB4 #3FAFD7 #71C4E2

Accessibility & contrast

On white

3.75

#258EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#258EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258EB4

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258EB4	#FFFFFF	#000000	##000000
##258EB4	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB6

Deuteranopia (green-blind)

#677EB4

Tritanopia (blue-blind)

#00999B

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258eb4;
/* rgb */ color: rgb(37, 142, 180);
/* oklch */ color: oklch(60.6% 0.107 227.7);

Tailwind

colors: {
  custom: {
    50: '#77afca',
    500: '#258eb4',
    950: '#000000',
  },
}

SCSS

$custom: #258eb4;
$custom-light: #77afca;
$custom-dark: #000000;

JSON

{
  "hex": "#258eb4",
  "rgb": {
    "r": 37,
    "g": 142,
    "b": 180
  },
  "hsl": {
    "h": 195.944,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60624,
    "c": 0.10703,
    "h": 227.7
  },
  "luminance": 0.23035
}

Semantic roles & 50–950 ramp

primary

#258EB4

secondary

#C9856C

accent

#6C3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258EB4

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

Preview Lab → · Contrast checker → · Palette generator →