#2538BD#2538BD

#2538BD is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.7% C 0.206 H 268.6°. Best body text is #FFFFFF at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#2538BD
RGB	rgb(37, 56, 189)
HSL	hsl(233, 67%, 44%)
HSV	hsv(233, 80%, 74%)
CMYK	cmyk(80.4%, 70.4%, 0%, 25.9%)
CIE-LAB	lab(31.57, 41.26, -71.12)
CIE-LCH	lch(31.57, 82.22, 300.12°)
OKLab	oklab(42.68% -0.0051 -0.206)
OKLCH	oklch(42.68% 0.206 268.6)
XYZ	xyz(11.3593, 6.8945, 48.8663)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2538BD #BDAA25

analogous

#2584BD #2538BD #5E25BD

triadic

#2538BD #BD2538 #38BD25

tetradic

#2538BD #BD2584 #BDAA25 #25BD5E

square

#2538BD #BD2584 #BDAA25 #25BD5E

split-complementary

#2538BD #BD5E25 #84BD25

monochromatic

#111A57 #1B298A #2538BD #4557DB #7885E5

Accessibility & contrast

On white

8.83

#2538BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2538BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2538BD

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2538BD	#FFFFFF	#000000	##FFFFFF
##2538BD	1.00	8.83	2.38	8.83
#FFFFFF	8.83	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C1

Deuteranopia (green-blind)

#0043BB

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2538bd;
/* rgb */ color: rgb(37, 56, 189);
/* oklch */ color: oklch(42.7% 0.206 268.6);

Tailwind

colors: {
  custom: {
    50: '#7b6fd2',
    500: '#2538bd',
    950: '#000000',
  },
}

SCSS

$custom: #2538bd;
$custom-light: #7b6fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#2538bd",
  "rgb": {
    "r": 37,
    "g": 56,
    "b": 189
  },
  "hsl": {
    "h": 232.5,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42683,
    "c": 0.20609,
    "h": 268.6
  },
  "luminance": 0.06896
}

Semantic roles & 50–950 ramp

primary

#2538BD

secondary

#CCC172

accent

#D53EEA

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2538BD

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

Preview Lab → · Contrast checker → · Palette generator →