#233B6E#233B6E

#233B6E is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.093 H 263.5°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#233B6E
RGB	rgb(35, 59, 110)
HSL	hsl(221, 52%, 28%)
HSV	hsv(221, 68%, 43%)
CMYK	cmyk(68.2%, 46.4%, 0%, 56.9%)
CIE-LAB	lab(25.60, 8.94, -32.42)
CIE-LCH	lch(25.60, 33.63, 285.41°)
OKLab	oklab(36.16% -0.0106 -0.0926)
OKLCH	oklch(36.16% 0.093 263.5)
XYZ	xyz(5.0706, 4.6106, 15.3715)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6E #6E5623

analogous

#23606E #233B6E #30236E

triadic

#233B6E #6E233B #3B6E23

tetradic

#233B6E #6E2360 #6E5623 #236E30

square

#233B6E #6E2360 #6E5623 #236E30

split-complementary

#233B6E #6E3023 #606E23

monochromatic

#070C17 #142240 #233B6E #32549C #476FC4

Accessibility & contrast

On white

10.92

#233B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#233B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6E

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6E	#FFFFFF	#000000	##FFFFFF
##233B6E	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234070

Deuteranopia (green-blind)

#16396D

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233b6e;
/* rgb */ color: rgb(35, 59, 110);
/* oklch */ color: oklch(36.2% 0.093 263.5);

Tailwind

colors: {
  custom: {
    50: '#677098',
    500: '#233b6e',
    950: '#000000',
  },
}

SCSS

$custom: #233b6e;
$custom-light: #677098;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6e",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 110
  },
  "hsl": {
    "h": 220.8,
    "s": 51.724,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36157,
    "c": 0.09318,
    "h": 263.5
  },
  "luminance": 0.04611
}

Semantic roles & 50–950 ramp

primary

#233B6E

secondary

#A1864C

accent

#AE4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233B6E

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

Preview Lab → · Contrast checker → · Palette generator →