#303E80#303E80

#303E80 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.9% C 0.112 H 271.3°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#303E80
RGB	rgb(48, 62, 128)
HSL	hsl(230, 45%, 35%)
HSV	hsv(230, 63%, 50%)
CMYK	cmyk(62.5%, 51.6%, 0%, 49.8%)
CIE-LAB	lab(28.46, 16.29, -39.16)
CIE-LCH	lch(28.46, 42.41, 292.58°)
OKLab	oklab(38.94% 0.0026 -0.112)
OKLCH	oklch(38.94% 0.112 271.3)
XYZ	xyz(6.8365, 5.6316, 21.1446)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303E80 #807230

analogous

#306680 #303E80 #4A3080

triadic

#303E80 #80303E #3E8030

tetradic

#303E80 #803066 #807230 #30804A

square

#303E80 #803066 #807230 #30804A

split-complementary

#303E80 #804A30 #668030

monochromatic

#0F1327 #1F2853 #303E80 #4154AD #6576C5

Accessibility & contrast

On white

9.88

#303E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#303E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303E80

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303E80	#FFFFFF	#000000	##FFFFFF
##303E80	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4782

Deuteranopia (green-blind)

#0A407F

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #303e80;
/* rgb */ color: rgb(48, 62, 128);
/* oklch */ color: oklch(38.9% 0.112 271.3);

Tailwind

colors: {
  custom: {
    50: '#7073a5',
    500: '#303e80',
    950: '#000000',
  },
}

SCSS

$custom: #303e80;
$custom-light: #7073a5;
$custom-dark: #000000;

JSON

{
  "hex": "#303e80",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 128
  },
  "hsl": {
    "h": 229.5,
    "s": 45.455,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38941,
    "c": 0.11207,
    "h": 271.3
  },
  "luminance": 0.05632
}

Semantic roles & 50–950 ramp

primary

#303E80

secondary

#AC9F5F

accent

#BE53D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #303E80

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

Preview Lab → · Contrast checker → · Palette generator →