#233A8E#233A8E

#233A8E is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.142 H 267.5°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#233A8E
RGB	rgb(35, 58, 142)
HSL	hsl(227, 60%, 35%)
HSV	hsv(227, 75%, 56%)
CMYK	cmyk(75.4%, 59.2%, 0%, 44.3%)
CIE-LAB	lab(27.67, 22.21, -49.17)
CIE-LCH	lch(27.67, 53.95, 294.31°)
OKLab	oklab(38.48% -0.0061 -0.1418)
OKLCH	oklch(38.48% 0.142 267.5)
XYZ	xyz(7.0870, 5.3357, 26.2423)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A8E #8E7723

analogous

#23708E #233A8E #42238E

triadic

#233A8E #8E233A #3A8E23

tetradic

#233A8E #8E2370 #8E7723 #238E42

square

#233A8E #8E2370 #8E7723 #238E42

split-complementary

#233A8E #8E4223 #708E23

monochromatic

#0B122C #17265D #233A8E #2F4EBF #5671D5

Accessibility & contrast

On white

10.16

#233A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#233A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A8E

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A8E	#FFFFFF	#000000	##FFFFFF
##233A8E	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233a8e;
/* rgb */ color: rgb(35, 58, 142);
/* oklch */ color: oklch(38.5% 0.142 267.5);

Tailwind

colors: {
  custom: {
    50: '#6e6fb0',
    500: '#233a8e',
    950: '#000000',
  },
}

SCSS

$custom: #233a8e;
$custom-light: #6e6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#233a8e",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 142
  },
  "hsl": {
    "h": 227.103,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.38483,
    "c": 0.14198,
    "h": 267.5
  },
  "luminance": 0.05336
}

Semantic roles & 50–950 ramp

primary

#233A8E

secondary

#B9A353

accent

#C144E4

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233A8E

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

Preview Lab → · Contrast checker → · Palette generator →