#258FB0#258FB0

#258FB0 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 60.7% C 0.104 H 224.0°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#258FB0
RGB	rgb(37, 143, 176)
HSL	hsl(194, 65%, 42%)
HSV	hsv(194, 79%, 69%)
CMYK	cmyk(79%, 18.7%, 0%, 31%)
CIE-LAB	lab(55.25, -17.76, -25.66)
CIE-LCH	lch(55.25, 31.20, 235.31°)
OKLab	oklab(60.68% -0.0745 -0.0719)
OKLCH	oklch(60.68% 0.104 224)
XYZ	xyz(18.4186, 23.1706, 44.5675)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FB0 #B04625

analogous

#25B08C #258FB0 #2549B0

triadic

#258FB0 #B0258F #8FB025

tetradic

#258FB0 #8C25B0 #B04625 #49B025

square

#258FB0 #8C25B0 #B04625 #49B025

split-complementary

#258FB0 #B02549 #B08C25

monochromatic

#103D4B #1A667D #258FB0 #3CB2D6 #6FC6E1

Accessibility & contrast

On white

3.73

#258FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#258FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FB0

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FB0	#FFFFFF	#000000	##000000
##258FB0	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8CB2

Deuteranopia (green-blind)

#6A7FB0

Tritanopia (blue-blind)

#00999A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258fb0;
/* rgb */ color: rgb(37, 143, 176);
/* oklch */ color: oklch(60.7% 0.104 224.0);

Tailwind

colors: {
  custom: {
    50: '#76b0c7',
    500: '#258fb0',
    950: '#000000',
  },
}

SCSS

$custom: #258fb0;
$custom-light: #76b0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#258fb0",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 176
  },
  "hsl": {
    "h": 194.245,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.60684,
    "c": 0.1036,
    "h": 224
  },
  "luminance": 0.23173
}

Semantic roles & 50–950 ramp

primary

#258FB0

secondary

#C7806A

accent

#6840E8

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258FB0

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

Preview Lab → · Contrast checker → · Palette generator →