#233B5E#233B5E

#233B5E is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.1% C 0.068 H 257.8°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#233B5E
RGB	rgb(35, 59, 94)
HSL	hsl(216, 46%, 25%)
HSV	hsv(216, 63%, 37%)
CMYK	cmyk(62.8%, 37.2%, 0%, 63.1%)
CIE-LAB	lab(24.62, 2.77, -23.65)
CIE-LCH	lch(24.62, 23.81, 276.67°)
OKLab	oklab(35.08% -0.0145 -0.0669)
OKLCH	oklch(35.08% 0.068 257.8)
XYZ	xyz(4.2768, 4.2930, 11.1908)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B5E #5E4623

analogous

#23585E #233B5E #28235E

triadic

#233B5E #5E233B #3B5E23

tetradic

#233B5E #5E2358 #5E4623 #235E28

square

#233B5E #5E2358 #5E4623 #235E28

split-complementary

#233B5E #5E2823 #585E23

monochromatic

#080E16 #121F31 #233B5E #34578B #4473B7

Accessibility & contrast

On white

11.30

#233B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B5E

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B5E	#FFFFFF	#000000	##FFFFFF
##233B5E	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3E5F

Deuteranopia (green-blind)

#25385D

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233b5e;
/* rgb */ color: rgb(35, 59, 94);
/* oklch */ color: oklch(35.1% 0.068 257.8);

Tailwind

colors: {
  custom: {
    50: '#64708c',
    500: '#233b5e',
    950: '#000000',
  },
}

SCSS

$custom: #233b5e;
$custom-light: #64708c;
$custom-dark: #000000;

JSON

{
  "hex": "#233b5e",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 94
  },
  "hsl": {
    "h": 215.593,
    "s": 45.736,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35081,
    "c": 0.06845,
    "h": 257.8
  },
  "luminance": 0.04293
}

Semantic roles & 50–950 ramp

primary

#233B5E

secondary

#92754B

accent

#A052D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #233B5E

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

Preview Lab → · Contrast checker → · Palette generator →