#233B87#233B87

#233B87 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.131 H 266.8°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#233B87
RGB	rgb(35, 59, 135)
HSL	hsl(226, 59%, 33%)
HSV	hsv(226, 74%, 53%)
CMYK	cmyk(74.1%, 56.3%, 0%, 47.1%)
CIE-LAB	lab(27.39, 18.78, -45.29)
CIE-LCH	lch(27.39, 49.03, 292.52°)
OKLab	oklab(38.1% -0.0073 -0.1304)
OKLCH	oklch(38.1% 0.131 266.8)
XYZ	xyz(6.6288, 5.2338, 23.5779)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B87 #876F23

analogous

#236D87 #233B87 #3D2387

triadic

#233B87 #87233B #3B8723

tetradic

#233B87 #87236D #876F23 #23873D

square

#233B87 #87236D #876F23 #23873D

split-complementary

#233B87 #873D23 #6D8723

monochromatic

#0A1126 #162656 #233B87 #3050B8 #5271D2

Accessibility & contrast

On white

10.26

#233B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#233B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B87

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B87	#FFFFFF	#000000	##FFFFFF
##233B87	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458A

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233b87;
/* rgb */ color: rgb(35, 59, 135);
/* oklch */ color: oklch(38.1% 0.131 266.8);

Tailwind

colors: {
  custom: {
    50: '#6c70ab',
    500: '#233b87',
    950: '#000000',
  },
}

SCSS

$custom: #233b87;
$custom-light: #6c70ab;
$custom-dark: #000000;

JSON

{
  "hex": "#233b87",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 135
  },
  "hsl": {
    "h": 225.6,
    "s": 58.824,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38097,
    "c": 0.13062,
    "h": 266.8
  },
  "luminance": 0.05235
}

Semantic roles & 50–950 ramp

primary

#233B87

secondary

#B69D50

accent

#BD46E2

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #233B87

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

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