#2631B0#2631B0

#2631B0 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.3% C 0.197 H 270.1°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#2631B0
RGB	rgb(38, 49, 176)
HSL	hsl(235, 64%, 42%)
HSV	hsv(235, 78%, 69%)
CMYK	cmyk(78.4%, 72.2%, 0%, 31%)
CIE-LAB	lab(28.75, 41.01, -68.04)
CIE-LCH	lch(28.75, 79.44, 301.08°)
OKLab	oklab(40.28% 0.0003 -0.197)
OKLCH	oklch(40.28% 0.197 270.1)
XYZ	xyz(9.7314, 5.7422, 41.6614)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.64

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2631B0 #B0A526

analogous

#2676B0 #2631B0 #6026B0

triadic

#2631B0 #B02631 #31B026

tetradic

#2631B0 #B02676 #B0A526 #26B060

square

#2631B0 #B02676 #B0A526 #26B060

split-complementary

#2631B0 #B06026 #76B026

monochromatic

#10154B #1B237E #2631B0 #3E4AD5 #7079E0

Accessibility & contrast

On white

9.77

#2631B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2631B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2631B0

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2631B0	#FFFFFF	#000000	##FFFFFF
##2631B0	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB4

Deuteranopia (green-blind)

#003DAE

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2631b0;
/* rgb */ color: rgb(38, 49, 176);
/* oklch */ color: oklch(40.3% 0.197 270.1);

Tailwind

colors: {
  custom: {
    50: '#796ac9',
    500: '#2631b0',
    950: '#000000',
  },
}

SCSS

$custom: #2631b0;
$custom-light: #796ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#2631b0",
  "rgb": {
    "r": 38,
    "g": 49,
    "b": 176
  },
  "hsl": {
    "h": 235.217,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40277,
    "c": 0.19704,
    "h": 270.1
  },
  "luminance": 0.05743
}

Semantic roles & 50–950 ramp

primary

#2631B0

secondary

#C7C06B

accent

#DA40E7

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2631B0

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

Preview Lab → · Contrast checker → · Palette generator →