#304C8E#304C8E

#304C8E is a dark, moderate blue. Relative luminance 0.077; OKLCH L 43.0% C 0.114 H 264.7°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#304C8E
RGB	rgb(48, 76, 142)
HSL	hsl(222, 49%, 37%)
HSV	hsv(222, 66%, 56%)
CMYK	cmyk(66.2%, 46.5%, 0%, 44.3%)
CIE-LAB	lab(33.46, 12.03, -39.80)
CIE-LCH	lch(33.46, 41.58, 286.82°)
OKLab	oklab(43.05% -0.0104 -0.1137)
OKLCH	oklch(43.05% 0.114 264.7)
XYZ	xyz(8.6842, 7.7494, 26.6241)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304C8E #8E7230

analogous

#307B8E #304C8E #43308E

triadic

#304C8E #8E304C #4C8E30

tetradic

#304C8E #8E307B #8E7230 #308E43

square

#304C8E #8E307B #8E7230 #308E43

split-complementary

#304C8E #8E4330 #7B8E30

monochromatic

#111B33 #213460 #304C8E #3F64BC #6B88CD

Accessibility & contrast

On white

8.24

#304C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#304C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304C8E

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304C8E	#FFFFFF	#000000	##FFFFFF
##304C8E	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5390

Deuteranopia (green-blind)

#1C4B8D

Tritanopia (blue-blind)

#005B66

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #304c8e;
/* rgb */ color: rgb(48, 76, 142);
/* oklch */ color: oklch(43.0% 0.114 264.7);

Tailwind

colors: {
  custom: {
    50: '#737daf',
    500: '#304c8e',
    950: '#000000',
  },
}

SCSS

$custom: #304c8e;
$custom-light: #737daf;
$custom-dark: #000000;

JSON

{
  "hex": "#304c8e",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 142
  },
  "hsl": {
    "h": 222.128,
    "s": 49.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.43047,
    "c": 0.1142,
    "h": 264.7
  },
  "luminance": 0.0775
}

Semantic roles & 50–950 ramp

primary

#304C8E

secondary

#B49D65

accent

#B04FD9

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #304C8E

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

Preview Lab → · Contrast checker → · Palette generator →