#233F70#233F70

#233F70 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.091 H 260.8°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#233F70
RGB	rgb(35, 63, 112)
HSL	hsl(218, 52%, 29%)
HSV	hsv(218, 69%, 44%)
CMYK	cmyk(68.8%, 43.7%, 0%, 56.1%)
CIE-LAB	lab(26.97, 6.95, -31.51)
CIE-LCH	lch(26.97, 32.27, 282.43°)
OKLab	oklab(37.26% -0.0146 -0.0898)
OKLCH	oklch(37.26% 0.091 260.8)
XYZ	xyz(5.3942, 5.0817, 16.0227)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F70 #705423

analogous

#236670 #233F70 #2E2370

triadic

#233F70 #70233F #3F7023

tetradic

#233F70 #702366 #705423 #23702E

square

#233F70 #702366 #705423 #23702E

split-complementary

#233F70 #702E23 #667023

monochromatic

#070D17 #142541 #233F70 #32599F #4876C6

Accessibility & contrast

On white

10.41

#233F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#233F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F70

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F70	#FFFFFF	#000000	##FFFFFF
##233F70	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284472

Deuteranopia (green-blind)

#1D3C6F

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233f70;
/* rgb */ color: rgb(35, 63, 112);
/* oklch */ color: oklch(37.3% 0.091 260.8);

Tailwind

colors: {
  custom: {
    50: '#677399',
    500: '#233f70',
    950: '#000000',
  },
}

SCSS

$custom: #233f70;
$custom-light: #677399;
$custom-dark: #000000;

JSON

{
  "hex": "#233f70",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 112
  },
  "hsl": {
    "h": 218.182,
    "s": 52.381,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37255,
    "c": 0.09102,
    "h": 260.8
  },
  "luminance": 0.05082
}

Semantic roles & 50–950 ramp

primary

#233F70

secondary

#A3834C

accent

#A84CDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #233F70

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

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