#233B89#233B89

#233B89 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.134 H 266.9°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#233B89
RGB	rgb(35, 59, 137)
HSL	hsl(226, 59%, 34%)
HSV	hsv(226, 74%, 54%)
CMYK	cmyk(74.5%, 56.9%, 0%, 46.3%)
CIE-LAB	lab(27.55, 19.57, -46.28)
CIE-LCH	lch(27.55, 50.24, 292.92°)
OKLab	oklab(38.27% -0.0072 -0.1333)
OKLCH	oklch(38.27% 0.134 266.9)
XYZ	xyz(6.7709, 5.2907, 24.3264)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B89 #897123

analogous

#236E89 #233B89 #3E2389

triadic

#233B89 #89233B #3B8923

tetradic

#233B89 #89236E #897123 #23893E

square

#233B89 #89236E #897123 #23893E

split-complementary

#233B89 #893E23 #6E8923

monochromatic

#0A1128 #172658 #233B89 #2F50BA #5371D3

Accessibility & contrast

On white

10.20

#233B89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#233B89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B89

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B89	#FFFFFF	#000000	##FFFFFF
##233B89	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468C

Deuteranopia (green-blind)

#003D87

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233b89;
/* rgb */ color: rgb(35, 59, 137);
/* oklch */ color: oklch(38.3% 0.134 266.9);

Tailwind

colors: {
  custom: {
    50: '#6d70ac',
    500: '#233b89',
    950: '#000000',
  },
}

SCSS

$custom: #233b89;
$custom-light: #6d70ac;
$custom-dark: #000000;

JSON

{
  "hex": "#233b89",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 137
  },
  "hsl": {
    "h": 225.882,
    "s": 59.302,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38265,
    "c": 0.13352,
    "h": 266.9
  },
  "luminance": 0.05291
}

Semantic roles & 50–950 ramp

primary

#233B89

secondary

#B79F51

accent

#BE45E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233B89

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

Preview Lab → · Contrast checker → · Palette generator →