#233A71#233A71

#233A71 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.099 H 264.8°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#233A71
RGB	rgb(35, 58, 113)
HSL	hsl(222, 53%, 29%)
HSV	hsv(222, 69%, 44%)
CMYK	cmyk(69%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(25.49, 10.81, -34.51)
CIE-LCH	lch(25.49, 36.16, 287.39°)
OKLab	oklab(36.14% -0.0089 -0.0987)
OKLCH	oklch(36.14% 0.099 264.8)
XYZ	xyz(5.1858, 4.5752, 16.2294)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A71 #715A23

analogous

#236171 #233A71 #332371

triadic

#233A71 #71233A #3A7123

tetradic

#233A71 #712361 #715A23 #237133

square

#233A71 #712361 #715A23 #237133

split-complementary

#233A71 #713323 #617123

monochromatic

#070C17 #152242 #233A71 #3152A0 #486DC6

Accessibility & contrast

On white

10.96

#233A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#233A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A71

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A71	#FFFFFF	#000000	##FFFFFF
##233A71	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4073

Deuteranopia (green-blind)

#0F3970

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233a71;
/* rgb */ color: rgb(35, 58, 113);
/* oklch */ color: oklch(36.1% 0.099 264.8);

Tailwind

colors: {
  custom: {
    50: '#676f9a',
    500: '#233a71',
    950: '#000000',
  },
}

SCSS

$custom: #233a71;
$custom-light: #676f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#233a71",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 222.308,
    "s": 52.703,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36139,
    "c": 0.09913,
    "h": 264.8
  },
  "luminance": 0.04576
}

Semantic roles & 50–950 ramp

primary

#233A71

secondary

#A48A4C

accent

#B24CDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233A71

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

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