#2631B1#2631B1

#2631B1 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.4% C 0.198 H 270.0°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#2631B1
RGB	rgb(38, 49, 177)
HSL	hsl(235, 65%, 42%)
HSV	hsv(235, 79%, 69%)
CMYK	cmyk(78.5%, 72.3%, 0%, 30.6%)
CIE-LAB	lab(28.86, 41.36, -68.46)
CIE-LCH	lch(28.86, 79.99, 301.14°)
OKLab	oklab(40.38% 0.0002 -0.1983)
OKLCH	oklch(40.38% 0.198 270)
XYZ	xyz(9.8307, 5.7819, 42.1844)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.56

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2631B1 #B1A626

analogous

#2676B1 #2631B1 #6126B1

triadic

#2631B1 #B12631 #31B126

tetradic

#2631B1 #B12676 #B1A626 #26B161

square

#2631B1 #B12676 #B1A626 #26B161

split-complementary

#2631B1 #B16126 #76B126

monochromatic

#10154C #1B237F #2631B1 #3F4AD6 #717AE0

Accessibility & contrast

On white

9.74

#2631B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2631B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2631B1

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2631B1	#FFFFFF	#000000	##FFFFFF
##2631B1	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB5

Deuteranopia (green-blind)

#003DAF

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2631b1;
/* rgb */ color: rgb(38, 49, 177);
/* oklch */ color: oklch(40.4% 0.198 270.0);

Tailwind

colors: {
  custom: {
    50: '#796aca',
    500: '#2631b1',
    950: '#000000',
  },
}

SCSS

$custom: #2631b1;
$custom-light: #796aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2631b1",
  "rgb": {
    "r": 38,
    "g": 49,
    "b": 177
  },
  "hsl": {
    "h": 235.252,
    "s": 64.651,
    "l": 42.157
  },
  "oklch": {
    "l": 0.40382,
    "c": 0.19828,
    "h": 270
  },
  "luminance": 0.05783
}

Semantic roles & 50–950 ramp

primary

#2631B1

secondary

#C7C06B

accent

#DA40E8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2631B1

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

Preview Lab → · Contrast checker → · Palette generator →