#258CB4#258CB4

#258CB4 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.108 H 229.4°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#258CB4
RGB	rgb(37, 140, 180)
HSL	hsl(197, 66%, 43%)
HSV	hsv(197, 79%, 71%)
CMYK	cmyk(79.4%, 22.2%, 0%, 29.4%)
CIE-LAB	lab(54.49, -14.73, -29.11)
CIE-LCH	lch(54.49, 32.63, 243.15°)
OKLab	oklab(60.13% -0.0701 -0.0819)
OKLCH	oklch(60.13% 0.108 229.4)
XYZ	xyz(18.3759, 22.4425, 46.5345)
Luminance	0.2245 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258CB4 #B44D25

analogous

#25B494 #258CB4 #2545B4

triadic

#258CB4 #B4258C #8CB425

tetradic

#258CB4 #9425B4 #B44D25 #45B425

square

#258CB4 #9425B4 #B44D25 #45B425

split-complementary

#258CB4 #B42545 #B49425

monochromatic

#103D4E #1B6581 #258CB4 #3FADD7 #71C2E2

Accessibility & contrast

On white

3.83

#258CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#258CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258CB4

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258CB4	#FFFFFF	#000000	##000000
##258CB4	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB6

Deuteranopia (green-blind)

#647CB3

Tritanopia (blue-blind)

#009799

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #258cb4;
/* rgb */ color: rgb(37, 140, 180);
/* oklch */ color: oklch(60.1% 0.108 229.4);

Tailwind

colors: {
  custom: {
    50: '#77adca',
    500: '#258cb4',
    950: '#000000',
  },
}

SCSS

$custom: #258cb4;
$custom-light: #77adca;
$custom-dark: #000000;

JSON

{
  "hex": "#258cb4",
  "rgb": {
    "r": 37,
    "g": 140,
    "b": 180
  },
  "hsl": {
    "h": 196.783,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.60134,
    "c": 0.10783,
    "h": 229.4
  },
  "luminance": 0.22445
}

Semantic roles & 50–950 ramp

primary

#258CB4

secondary

#C9866C

accent

#6E3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258CB4

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

Preview Lab → · Contrast checker → · Palette generator →