#2538BC#2538BC

#2538BC is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 42.6% C 0.205 H 268.6°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#2538BC
RGB	rgb(37, 56, 188)
HSL	hsl(232, 67%, 44%)
HSV	hsv(232, 80%, 74%)
CMYK	cmyk(80.3%, 70.2%, 0%, 26.3%)
CIE-LAB	lab(31.47, 40.91, -70.69)
CIE-LCH	lch(31.47, 81.67, 300.06°)
OKLab	oklab(42.58% -0.005 -0.2048)
OKLCH	oklch(42.58% 0.205 268.6)
XYZ	xyz(11.2511, 6.8512, 48.2966)
Luminance	0.0685 (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

#2538BC #BCA925

analogous

#2584BC #2538BC #5D25BC

triadic

#2538BC #BC2538 #38BC25

tetradic

#2538BC #BC2584 #BCA925 #25BC5D

square

#2538BC #BC2584 #BCA925 #25BC5D

split-complementary

#2538BC #BC5D25 #84BC25

monochromatic

#111A56 #1B2989 #2538BC #4457DA #7785E4

Accessibility & contrast

On white

8.86

#2538BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2538BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2538BC

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2538BC	#FFFFFF	#000000	##FFFFFF
##2538BC	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C0

Deuteranopia (green-blind)

#0043BA

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2538bc;
/* rgb */ color: rgb(37, 56, 188);
/* oklch */ color: oklch(42.6% 0.205 268.6);

Tailwind

colors: {
  custom: {
    50: '#7b6fd1',
    500: '#2538bc',
    950: '#000000',
  },
}

SCSS

$custom: #2538bc;
$custom-light: #7b6fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2538bc",
  "rgb": {
    "r": 37,
    "g": 56,
    "b": 188
  },
  "hsl": {
    "h": 232.45,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42581,
    "c": 0.20485,
    "h": 268.6
  },
  "luminance": 0.06853
}

Semantic roles & 50–950 ramp

primary

#2538BC

secondary

#CCC071

accent

#D43EEA

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2538BC

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

Preview Lab → · Contrast checker → · Palette generator →