#258FAB#258FAB

#258FAB is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.100 H 220.2°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#258FAB
RGB	rgb(37, 143, 171)
HSL	hsl(193, 64%, 41%)
HSV	hsv(193, 78%, 67%)
CMYK	cmyk(78.4%, 16.4%, 0%, 32.9%)
CIE-LAB	lab(55.05, -19.47, -23.10)
CIE-LCH	lch(55.05, 30.21, 229.88°)
OKLab	oklab(60.46% -0.0765 -0.0646)
OKLCH	oklch(60.46% 0.1 220.2)
XYZ	xyz(17.9330, 22.9763, 42.0099)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FAB #AB4125

analogous

#25AB84 #258FAB #254CAB

triadic

#258FAB #AB258F #8FAB25

tetradic

#258FAB #8425AB #AB4125 #4CAB25

square

#258FAB #8425AB #AB4125 #4CAB25

split-complementary

#258FAB #AB254C #AB8425

monochromatic

#0F3B46 #1A6579 #258FAB #39B4D4 #6BC7DF

Accessibility & contrast

On white

3.75

#258FAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#258FAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FAB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FAB	#FFFFFF	#000000	##000000
##258FAB	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAC

Deuteranopia (green-blind)

#6C7EAB

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #258fab;
/* rgb */ color: rgb(37, 143, 171);
/* oklch */ color: oklch(60.5% 0.100 220.2);

Tailwind

colors: {
  custom: {
    50: '#76b0c4',
    500: '#258fab',
    950: '#000000',
  },
}

SCSS

$custom: #258fab;
$custom-light: #76b0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#258fab",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 171
  },
  "hsl": {
    "h": 192.537,
    "s": 64.423,
    "l": 40.784
  },
  "oklch": {
    "l": 0.60457,
    "c": 0.10017,
    "h": 220.2
  },
  "luminance": 0.22979
}

Semantic roles & 50–950 ramp

primary

#258FAB

secondary

#C57A67

accent

#6340E7

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #258FAB

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

Preview Lab → · Contrast checker → · Palette generator →