#258BB3#258BB3

#258BB3 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.8% C 0.107 H 229.6°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#258BB3
RGB	rgb(37, 139, 179)
HSL	hsl(197, 66%, 42%)
HSV	hsv(197, 79%, 70%)
CMYK	cmyk(79.3%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(54.14, -14.53, -29.08)
CIE-LCH	lch(54.14, 32.51, 243.45°)
OKLab	oklab(59.84% -0.0696 -0.0818)
OKLCH	oklch(59.84% 0.107 229.6)
XYZ	xyz(18.1289, 22.1110, 45.9515)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#258BB3 #B34D25

analogous

#25B394 #258BB3 #2544B3

triadic

#258BB3 #B3258B #8BB325

tetradic

#258BB3 #9425B3 #B34D25 #44B325

square

#258BB3 #9425B3 #B34D25 #44B325

split-complementary

#258BB3 #B32544 #B39425

monochromatic

#103C4E #1B6480 #258BB3 #3EACD7 #71C2E2

Accessibility & contrast

On white

3.87

#258BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#258BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #258BB3

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##258BB3	#FFFFFF	#000000	##000000
##258BB3	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7689B5

Deuteranopia (green-blind)

#647CB2

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #258bb3;
/* rgb */ color: rgb(37, 139, 179);
/* oklch */ color: oklch(59.8% 0.107 229.6);

Tailwind

colors: {
  custom: {
    50: '#77adca',
    500: '#258bb3',
    950: '#000000',
  },
}

SCSS

$custom: #258bb3;
$custom-light: #77adca;
$custom-dark: #000000;

JSON

{
  "hex": "#258bb3",
  "rgb": {
    "r": 37,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 196.901,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.59842,
    "c": 0.10738,
    "h": 229.6
  },
  "luminance": 0.22113
}

Semantic roles & 50–950 ramp

primary

#258BB3

secondary

#C8866B

accent

#6F3FE9

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #258BB3

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

Preview Lab → · Contrast checker → · Palette generator →