#232B4F#232B4F

#232B4F is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.1% C 0.066 H 272.4°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#232B4F
RGB	rgb(35, 43, 79)
HSL	hsl(229, 39%, 22%)
HSV	hsv(229, 56%, 31%)
CMYK	cmyk(55.7%, 45.6%, 0%, 69%)
CIE-LAB	lab(18.58, 8.39, -23.26)
CIE-LCH	lch(18.58, 24.73, 289.83°)
OKLab	oklab(30.12% 0.0028 -0.0659)
OKLCH	oklch(30.12% 0.066 272.4)
XYZ	xyz(2.9678, 2.6494, 7.7506)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#232B4F #4F4723

analogous

#23414F #232B4F #31234F

triadic

#232B4F #4F232B #2B4F23

tetradic

#232B4F #4F2341 #4F4723 #234F31

square

#232B4F #4F2341 #4F4723 #234F31

split-complementary

#232B4F #4F3123 #414F23

monochromatic

#090C15 #101425 #232B4F #364279 #4959A4

Accessibility & contrast

On white

13.73

#232B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#232B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #232B4F

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##232B4F	#FFFFFF	#000000	##FFFFFF
##232B4F	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2F50

Deuteranopia (green-blind)

#182B4E

Tritanopia (blue-blind)

#103339

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #232b4f;
/* rgb */ color: rgb(35, 43, 79);
/* oklch */ color: oklch(30.1% 0.066 272.4);

Tailwind

colors: {
  custom: {
    50: '#616480',
    500: '#232b4f',
    950: '#000000',
  },
}

SCSS

$custom: #232b4f;
$custom-light: #616480;
$custom-dark: #000000;

JSON

{
  "hex": "#232b4f",
  "rgb": {
    "r": 35,
    "g": 43,
    "b": 79
  },
  "hsl": {
    "h": 229.091,
    "s": 38.596,
    "l": 22.353
  },
  "oklch": {
    "l": 0.30119,
    "c": 0.06598,
    "h": 272.4
  },
  "luminance": 0.0265
}

Semantic roles & 50–950 ramp

primary

#232B4F

secondary

#83794B

accent

#B959CF

background

#F5F5F7

surface

#EAEAEE

border

#C6C6C9

text

#05050A

muted

#79797C

Preview Lab

Preview with #232B4F

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

Preview Lab → · Contrast checker → · Palette generator →