#2563BA#2563BA

#2563BA is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.8% C 0.151 H 257.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#2563BA
RGB	rgb(37, 99, 186)
HSL	hsl(215, 67%, 44%)
HSV	hsv(215, 80%, 73%)
CMYK	cmyk(80.1%, 46.8%, 0%, 27.1%)
CIE-LAB	lab(42.55, 12.21, -51.46)
CIE-LCH	lch(42.55, 52.89, 283.35°)
OKLab	oklab(50.84% -0.0319 -0.1478)
OKLCH	oklch(50.84% 0.151 257.8)
XYZ	xyz(14.0845, 12.8605, 48.1849)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563BA #BA7C25

analogous

#25ADBA #2563BA #3225BA

triadic

#2563BA #BA2563 #63BA25

tetradic

#2563BA #BA25AD #BA7C25 #25BA32

square

#2563BA #BA25AD #BA7C25 #25BA32

split-complementary

#2563BA #BA3225 #ADBA25

monochromatic

#112D54 #1B4887 #2563BA #4381DA #76A3E4

Accessibility & contrast

On white

5.88

#2563BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#2563BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563BA

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563BA	#FFFFFF	#000000	##FFFFFF
##2563BA	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336CBD

Deuteranopia (green-blind)

#075EB8

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2563ba;
/* rgb */ color: rgb(37, 99, 186);
/* oklch */ color: oklch(50.8% 0.151 257.8);

Tailwind

colors: {
  custom: {
    50: '#778ecf',
    500: '#2563ba',
    950: '#000000',
  },
}

SCSS

$custom: #2563ba;
$custom-light: #778ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#2563ba",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 186
  },
  "hsl": {
    "h": 215.034,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.5084,
    "c": 0.15119,
    "h": 257.8
  },
  "luminance": 0.12862
}

Semantic roles & 50–950 ramp

primary

#2563BA

secondary

#CBA570

accent

#A23EEA

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #2563BA

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

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