#233B88#233B88

#233B88 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.132 H 266.9°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#233B88
RGB	rgb(35, 59, 136)
HSL	hsl(226, 59%, 34%)
HSV	hsv(226, 74%, 53%)
CMYK	cmyk(74.3%, 56.6%, 0%, 46.7%)
CIE-LAB	lab(27.47, 19.17, -45.78)
CIE-LCH	lch(27.47, 49.64, 292.72°)
OKLab	oklab(38.18% -0.0072 -0.1319)
OKLCH	oklch(38.18% 0.132 266.9)
XYZ	xyz(6.6995, 5.2621, 23.9504)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B88 #887023

analogous

#236D88 #233B88 #3E2388

triadic

#233B88 #88233B #3B8823

tetradic

#233B88 #88236D #887023 #23883E

square

#233B88 #88236D #887023 #23883E

split-complementary

#233B88 #883E23 #6D8823

monochromatic

#0A1127 #162657 #233B88 #3050B9 #5371D3

Accessibility & contrast

On white

10.23

#233B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#233B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B88

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B88	#FFFFFF	#000000	##FFFFFF
##233B88	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233b88;
/* rgb */ color: rgb(35, 59, 136);
/* oklch */ color: oklch(38.2% 0.132 266.9);

Tailwind

colors: {
  custom: {
    50: '#6d70ab',
    500: '#233b88',
    950: '#000000',
  },
}

SCSS

$custom: #233b88;
$custom-light: #6d70ab;
$custom-dark: #000000;

JSON

{
  "hex": "#233b88",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 136
  },
  "hsl": {
    "h": 225.743,
    "s": 59.064,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38181,
    "c": 0.13208,
    "h": 266.9
  },
  "luminance": 0.05263
}

Semantic roles & 50–950 ramp

primary

#233B88

secondary

#B79E50

accent

#BD46E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233B88

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

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