#304D80#304D80

#304D80 is a dark, moderate blue. Relative luminance 0.075; OKLCH L 42.3% C 0.092 H 261.0°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#304D80
RGB	rgb(48, 77, 128)
HSL	hsl(218, 45%, 35%)
HSV	hsv(218, 63%, 50%)
CMYK	cmyk(62.5%, 39.8%, 0%, 49.8%)
CIE-LAB	lab(32.91, 6.18, -32.06)
CIE-LCH	lch(32.91, 32.65, 280.91°)
OKLab	oklab(42.35% -0.0145 -0.091)
OKLCH	oklch(42.35% 0.092 261)
XYZ	xyz(7.7677, 7.4940, 21.4550)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D80 #806330

analogous

#307580 #304D80 #3B3080

triadic

#304D80 #80304D #4D8030

tetradic

#304D80 #803075 #806330 #30803B

square

#304D80 #803075 #806330 #30803B

split-complementary

#304D80 #803B30 #758030

monochromatic

#0F1727 #1F3253 #304D80 #4168AD #6588C5

Accessibility & contrast

On white

8.40

#304D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#304D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D80

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D80	#FFFFFF	#000000	##FFFFFF
##304D80	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375182

Deuteranopia (green-blind)

#2C4A7F

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #304d80;
/* rgb */ color: rgb(48, 77, 128);
/* oklch */ color: oklch(42.3% 0.092 261.0);

Tailwind

colors: {
  custom: {
    50: '#707ea5',
    500: '#304d80',
    950: '#000000',
  },
}

SCSS

$custom: #304d80;
$custom-light: #707ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#304d80",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 128
  },
  "hsl": {
    "h": 218.25,
    "s": 45.455,
    "l": 34.51
  },
  "oklch": {
    "l": 0.42348,
    "c": 0.09216,
    "h": 261
  },
  "luminance": 0.07495
}

Semantic roles & 50–950 ramp

primary

#304D80

secondary

#AC905F

accent

#A653D5

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #304D80

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

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