#233D87#233D87

#233D87 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.128 H 266.0°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#233D87
RGB	rgb(35, 61, 135)
HSL	hsl(224, 59%, 33%)
HSV	hsv(224, 74%, 53%)
CMYK	cmyk(74.1%, 54.8%, 0%, 47.1%)
CIE-LAB	lab(27.96, 17.40, -44.36)
CIE-LCH	lch(27.96, 47.65, 291.41°)
OKLab	oklab(38.53% -0.009 -0.1277)
OKLCH	oklch(38.53% 0.128 266)
XYZ	xyz(6.7335, 5.4434, 23.6128)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D87 #876D23

analogous

#236F87 #233D87 #3B2387

triadic

#233D87 #87233D #3D8723

tetradic

#233D87 #87236F #876D23 #23873B

square

#233D87 #87236F #876D23 #23873B

split-complementary

#233D87 #873B23 #6F8723

monochromatic

#0A1126 #162756 #233D87 #3053B8 #5273D2

Accessibility & contrast

On white

10.05

#233D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#233D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D87

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D87	#FFFFFF	#000000	##FFFFFF
##233D87	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07478A

Deuteranopia (green-blind)

#003E86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233d87;
/* rgb */ color: rgb(35, 61, 135);
/* oklch */ color: oklch(38.5% 0.128 266.0);

Tailwind

colors: {
  custom: {
    50: '#6c72ab',
    500: '#233d87',
    950: '#000000',
  },
}

SCSS

$custom: #233d87;
$custom-light: #6c72ab;
$custom-dark: #000000;

JSON

{
  "hex": "#233d87",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 135
  },
  "hsl": {
    "h": 224.4,
    "s": 58.824,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38529,
    "c": 0.12799,
    "h": 266
  },
  "luminance": 0.05444
}

Semantic roles & 50–950 ramp

primary

#233D87

secondary

#B69B50

accent

#B946E2

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #233D87

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

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