#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
RGBrgb(37, 131, 188)
HSLhsl(203, 67%, 44%)
HSVhsv(203, 80%, 74%)
CMYKcmyk(80.3%, 30.3%, 0%, 26.3%)
CIE-LABlab(52.12, -6.76, -37.39)
CIE-LCHlch(52.12, 37.99, 259.76°)
OKLaboklab(58.37% -0.059 -0.106)
OKLCHoklch(58.37% 0.121 240.9)
XYZxyz(17.9528, 20.2545, 50.5305)
Luminance0.2026 (WCAG relative)
Temperaturecool
Familycyan

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
##2583BC1.004.165.055.05
#FFFFFF4.161.0021.0021.00
#0000005.0521.001.001.00
##0000005.0521.001.001.00

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 →

#2583BC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva