#258FB4#258FB4

#258FB4 is a mid, moderate cyan. Relative luminance 0.233; OKLCH L 60.9% C 0.107 H 226.8°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#258FB4
RGB	rgb(37, 143, 180)
HSL	hsl(196, 66%, 43%)
HSV	hsv(196, 79%, 71%)
CMYK	cmyk(79.4%, 20.6%, 0%, 29.4%)
CIE-LAB	lab(55.41, -16.38, -27.69)
CIE-LCH	lch(55.41, 32.17, 239.39°)
OKLab	oklab(60.87% -0.073 -0.0778)
OKLCH	oklch(60.87% 0.107 226.8)
XYZ	xyz(18.8202, 23.3312, 46.6826)
Luminance	0.2333 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258FB4 #B44A25

analogous

#25B491 #258FB4 #2548B4

triadic

#258FB4 #B4258F #8FB425

tetradic

#258FB4 #9125B4 #B44A25 #48B425

square

#258FB4 #9125B4 #B44A25 #48B425

split-complementary

#258FB4 #B42548 #B49125

monochromatic

#103E4E #1B6781 #258FB4 #3FB0D7 #71C5E2

Accessibility & contrast

On white

3.71

#258FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#258FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258FB4

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258FB4	#FFFFFF	#000000	##000000
##258FB4	1.00	3.71	5.67	5.67
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB6

Deuteranopia (green-blind)

#687FB4

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #258fb4;
/* rgb */ color: rgb(37, 143, 180);
/* oklch */ color: oklch(60.9% 0.107 226.8);

Tailwind

colors: {
  custom: {
    50: '#77afca',
    500: '#258fb4',
    950: '#000000',
  },
}

SCSS

$custom: #258fb4;
$custom-light: #77afca;
$custom-dark: #000000;

JSON

{
  "hex": "#258fb4",
  "rgb": {
    "r": 37,
    "g": 143,
    "b": 180
  },
  "hsl": {
    "h": 195.524,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60869,
    "c": 0.10668,
    "h": 226.8
  },
  "luminance": 0.23334
}

Semantic roles & 50–950 ramp

primary

#258FB4

secondary

#C9846C

accent

#6B3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258FB4

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

Preview Lab → · Contrast checker → · Palette generator →