#233A88#233A88

#233A88 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.133 H 267.2°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#233A88
RGB	rgb(35, 58, 136)
HSL	hsl(226, 59%, 34%)
HSV	hsv(226, 74%, 53%)
CMYK	cmyk(74.3%, 57.4%, 0%, 46.7%)
CIE-LAB	lab(27.19, 19.87, -46.24)
CIE-LCH	lch(27.19, 50.33, 293.25°)
OKLab	oklab(37.97% -0.0064 -0.1332)
OKLCH	oklch(37.97% 0.133 267.2)
XYZ	xyz(6.6486, 5.1603, 23.9334)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A88 #887123

analogous

#236C88 #233A88 #3E2388

triadic

#233A88 #88233A #3A8823

tetradic

#233A88 #88236C #887123 #23883E

square

#233A88 #88236C #887123 #23883E

split-complementary

#233A88 #883E23 #6C8823

monochromatic

#0A1027 #162557 #233A88 #304FB9 #5370D3

Accessibility & contrast

On white

10.33

#233A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#233A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A88

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A88	#FFFFFF	#000000	##FFFFFF
##233A88	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233a88;
/* rgb */ color: rgb(35, 58, 136);
/* oklch */ color: oklch(38.0% 0.133 267.2);

Tailwind

colors: {
  custom: {
    50: '#6d6fab',
    500: '#233a88',
    950: '#000000',
  },
}

SCSS

$custom: #233a88;
$custom-light: #6d6fab;
$custom-dark: #000000;

JSON

{
  "hex": "#233a88",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 136
  },
  "hsl": {
    "h": 226.337,
    "s": 59.064,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37968,
    "c": 0.13339,
    "h": 267.2
  },
  "luminance": 0.05161
}

Semantic roles & 50–950 ramp

primary

#233A88

secondary

#B79F50

accent

#BF46E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233A88

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

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