#233C87#233C87

#233C87 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.129 H 266.4°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#233C87
RGB	rgb(35, 60, 135)
HSL	hsl(225, 59%, 33%)
HSV	hsv(225, 74%, 53%)
CMYK	cmyk(74.1%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(27.68, 18.09, -44.83)
CIE-LCH	lch(27.68, 48.34, 291.97°)
OKLab	oklab(38.31% -0.0082 -0.129)
OKLCH	oklch(38.31% 0.129 266.4)
XYZ	xyz(6.6806, 5.3376, 23.5952)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C87 #876E23

analogous

#236E87 #233C87 #3C2387

triadic

#233C87 #87233C #3C8723

tetradic

#233C87 #87236E #876E23 #23873C

square

#233C87 #87236E #876E23 #23873C

split-complementary

#233C87 #873C23 #6E8723

monochromatic

#0A1126 #162656 #233C87 #3052B8 #5272D2

Accessibility & contrast

On white

10.16

#233C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#233C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C87

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C87	#FFFFFF	#000000	##FFFFFF
##233C87	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)

#02468A

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233c87;
/* rgb */ color: rgb(35, 60, 135);
/* oklch */ color: oklch(38.3% 0.129 266.4);

Tailwind

colors: {
  custom: {
    50: '#6c71ab',
    500: '#233c87',
    950: '#000000',
  },
}

SCSS

$custom: #233c87;
$custom-light: #6c71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#233c87",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 225,
    "s": 58.824,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38312,
    "c": 0.12931,
    "h": 266.4
  },
  "luminance": 0.05338
}

Semantic roles & 50–950 ramp

primary

#233C87

secondary

#B69C50

accent

#BB46E2

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #233C87

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

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