#258BB0#258BB0

#258BB0 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.105 H 227.6°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#258BB0
RGB	rgb(37, 139, 176)
HSL	hsl(196, 65%, 42%)
HSV	hsv(196, 79%, 69%)
CMYK	cmyk(79%, 21%, 0%, 31%)
CIE-LAB	lab(54.02, -15.58, -27.56)
CIE-LCH	lch(54.02, 31.66, 240.52°)
OKLab	oklab(59.7% -0.0707 -0.0774)
OKLCH	oklch(59.7% 0.105 227.6)
XYZ	xyz(17.8288, 21.9910, 44.3709)
Luminance	0.2199 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258BB0 #B04A25

analogous

#25B090 #258BB0 #2546B0

triadic

#258BB0 #B0258B #8BB025

tetradic

#258BB0 #9025B0 #B04A25 #46B025

square

#258BB0 #9025B0 #B04A25 #46B025

split-complementary

#258BB0 #B02546 #B09025

monochromatic

#103B4B #1A637D #258BB0 #3CADD6 #6FC2E1

Accessibility & contrast

On white

3.89

#258BB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#258BB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258BB0

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258BB0	#FFFFFF	#000000	##000000
##258BB0	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7789B2

Deuteranopia (green-blind)

#657BB0

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258bb0;
/* rgb */ color: rgb(37, 139, 176);
/* oklch */ color: oklch(59.7% 0.105 227.6);

Tailwind

colors: {
  custom: {
    50: '#76adc7',
    500: '#258bb0',
    950: '#000000',
  },
}

SCSS

$custom: #258bb0;
$custom-light: #76adc7;
$custom-dark: #000000;

JSON

{
  "hex": "#258bb0",
  "rgb": {
    "r": 37,
    "g": 139,
    "b": 176
  },
  "hsl": {
    "h": 195.971,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.59698,
    "c": 0.10483,
    "h": 227.6
  },
  "luminance": 0.21993
}

Semantic roles & 50–950 ramp

primary

#258BB0

secondary

#C7826A

accent

#6C40E8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258BB0

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

Preview Lab → · Contrast checker → · Palette generator →