#2583BC#2583BC

#2583BC is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.4% C 0.121 H 240.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#2583BC
RGB	rgb(37, 131, 188)
HSL	hsl(203, 67%, 44%)
HSV	hsv(203, 80%, 74%)
CMYK	cmyk(80.3%, 30.3%, 0%, 26.3%)
CIE-LAB	lab(52.12, -6.76, -37.39)
CIE-LCH	lch(52.12, 37.99, 259.76°)
OKLab	oklab(58.37% -0.059 -0.106)
OKLCH	oklch(58.37% 0.121 240.9)
XYZ	xyz(17.9528, 20.2545, 50.5305)
Luminance	0.2026 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2583BC #BC5E25

analogous

#25BCAA #2583BC #2538BC

triadic

#2583BC #BC2583 #83BC25

tetradic

#2583BC #AA25BC #BC5E25 #38BC25

square

#2583BC #AA25BC #BC5E25 #38BC25

split-complementary

#2583BC #BC2538 #BCAA25

monochromatic

#113C56 #1B5F89 #2583BC #44A2DA #77BBE4

Accessibility & contrast

On white

4.16

#2583BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#2583BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2583BC

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2583BC	#FFFFFF	#000000	##000000
##2583BC	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6884BF

Deuteranopia (green-blind)

#5376BB

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #2583bc;
/* rgb */ color: rgb(37, 131, 188);
/* oklch */ color: oklch(58.4% 0.121 240.9);

Tailwind

colors: {
  custom: {
    50: '#78a6d0',
    500: '#2583bc',
    950: '#000000',
  },
}

SCSS

$custom: #2583bc;
$custom-light: #78a6d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2583bc",
  "rgb": {
    "r": 37,
    "g": 131,
    "b": 188
  },
  "hsl": {
    "h": 202.649,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.58368,
    "c": 0.12129,
    "h": 240.9
  },
  "luminance": 0.20257
}

Semantic roles & 50–950 ramp

primary

#2583BC

secondary

#CC9371

accent

#7F3EEA

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A0F14

muted

#7C7F82

Preview Lab

Preview with #2583BC

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

Preview Lab → · Contrast checker → · Palette generator →