#234D8B#234D8B

#234D8B is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.5% C 0.113 H 258.2°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#234D8B
RGB	rgb(35, 77, 139)
HSL	hsl(216, 60%, 34%)
HSV	hsv(216, 75%, 55%)
CMYK	cmyk(74.8%, 44.6%, 0%, 45.5%)
CIE-LAB	lab(32.98, 8.05, -38.75)
CIE-LCH	lch(32.98, 39.58, 281.73°)
OKLab	oklab(42.46% -0.0231 -0.1109)
OKLCH	oklch(42.46% 0.113 258.2)
XYZ	xyz(8.0055, 7.5283, 25.4523)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234D8B #8B6123

analogous

#23818B #234D8B #2D238B

triadic

#234D8B #8B234D #4D8B23

tetradic

#234D8B #8B2381 #8B6123 #238B2D

square

#234D8B #8B2381 #8B6123 #238B2D

split-complementary

#234D8B #8B2D23 #818B23

monochromatic

#0A1729 #17325A #234D8B #2F68BC #5488D4

Accessibility & contrast

On white

8.38

#234D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#234D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234D8B

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234D8B	#FFFFFF	#000000	##FFFFFF
##234D8B	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E538D

Deuteranopia (green-blind)

#1B498A

Tritanopia (blue-blind)

#005C65

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #234d8b;
/* rgb */ color: rgb(35, 77, 139);
/* oklch */ color: oklch(42.5% 0.113 258.2);

Tailwind

colors: {
  custom: {
    50: '#6c7ead',
    500: '#234d8b',
    950: '#000000',
  },
}

SCSS

$custom: #234d8b;
$custom-light: #6c7ead;
$custom-dark: #000000;

JSON

{
  "hex": "#234d8b",
  "rgb": {
    "r": 35,
    "g": 77,
    "b": 139
  },
  "hsl": {
    "h": 215.769,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42459,
    "c": 0.11325,
    "h": 258.2
  },
  "luminance": 0.07529
}

Semantic roles & 50–950 ramp

primary

#234D8B

secondary

#B88F52

accent

#A345E3

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #234D8B

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

Preview Lab → · Contrast checker → · Palette generator →