#233B6D#233B6D

#233B6D is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.092 H 263.2°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#233B6D
RGB	rgb(35, 59, 109)
HSL	hsl(221, 51%, 28%)
HSV	hsv(221, 68%, 43%)
CMYK	cmyk(67.9%, 45.9%, 0%, 57.3%)
CIE-LAB	lab(25.53, 8.54, -31.89)
CIE-LCH	lch(25.53, 33.01, 285.00°)
OKLab	oklab(36.09% -0.0108 -0.091)
OKLCH	oklch(36.09% 0.092 263.2)
XYZ	xyz(5.0165, 4.5889, 15.0864)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6D #6D5523

analogous

#23606D #233B6D #30236D

triadic

#233B6D #6D233B #3B6D23

tetradic

#233B6D #6D2360 #6D5523 #236D30

square

#233B6D #6D2360 #6D5523 #236D30

split-complementary

#233B6D #6D3023 #606D23

monochromatic

#070D17 #14223F #233B6D #32549B #476FC4

Accessibility & contrast

On white

10.95

#233B6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#233B6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6D

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6D	#FFFFFF	#000000	##FFFFFF
##233B6D	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24406F

Deuteranopia (green-blind)

#18396C

Tritanopia (blue-blind)

#00464E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233b6d;
/* rgb */ color: rgb(35, 59, 109);
/* oklch */ color: oklch(36.1% 0.092 263.2);

Tailwind

colors: {
  custom: {
    50: '#667097',
    500: '#233b6d',
    950: '#000000',
  },
}

SCSS

$custom: #233b6d;
$custom-light: #667097;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6d",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 109
  },
  "hsl": {
    "h": 220.541,
    "s": 51.389,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36085,
    "c": 0.09165,
    "h": 263.2
  },
  "luminance": 0.04589
}

Semantic roles & 50–950 ramp

primary

#233B6D

secondary

#A0854B

accent

#AD4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233B6D

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

Preview Lab → · Contrast checker → · Palette generator →