#2123A6#2123A6

#2123A6 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.9% C 0.200 H 270.5°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#2123A6
RGB	rgb(33, 35, 166)
HSL	hsl(239, 67%, 39%)
HSV	hsv(239, 80%, 65%)
CMYK	cmyk(80.1%, 78.9%, 0%, 34.9%)
CIE-LAB	lab(24.57, 45.25, -68.95)
CIE-LCH	lch(24.57, 82.47, 303.28°)
OKLab	oklab(36.92% 0.0018 -0.1996)
OKLCH	oklch(36.92% 0.2 270.5)
XYZ	xyz(8.1088, 4.2776, 36.4673)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2123A6 #A6A421

analogous

#2166A6 #2123A6 #6221A6

triadic

#2123A6 #A62123 #23A621

tetradic

#2123A6 #A62166 #A6A421 #21A662

square

#2123A6 #A62166 #A6A421 #21A662

split-complementary

#2123A6 #A66221 #66A621

monochromatic

#0D0D40 #171873 #2123A6 #2F31D6 #6264E0

Accessibility & contrast

On white

11.32

#2123A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2123A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2123A6

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2123A6	#FFFFFF	#000000	##FFFFFF
##2123A6	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AA

Deuteranopia (green-blind)

#0033A4

Tritanopia (blue-blind)

#004B64

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2123a6;
/* rgb */ color: rgb(33, 35, 166);
/* oklch */ color: oklch(36.9% 0.200 270.5);

Tailwind

colors: {
  custom: {
    50: '#7660c2',
    500: '#2123a6',
    950: '#000000',
  },
}

SCSS

$custom: #2123a6;
$custom-light: #7660c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2123a6",
  "rgb": {
    "r": 33,
    "g": 35,
    "b": 166
  },
  "hsl": {
    "h": 239.098,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.36916,
    "c": 0.19966,
    "h": 270.5
  },
  "luminance": 0.04279
}

Semantic roles & 50–950 ramp

primary

#2123A6

secondary

#C5C35E

accent

#E73EEA

background

#F7F5FC

surface

#EEEAF8

border

#C9C6D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #2123A6

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

Preview Lab → · Contrast checker → · Palette generator →