#303E83#303E83

#303E83 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.2% C 0.117 H 271.4°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#303E83
RGB	rgb(48, 62, 131)
HSL	hsl(230, 46%, 35%)
HSV	hsv(230, 63%, 51%)
CMYK	cmyk(63.4%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(28.67, 17.39, -40.69)
CIE-LCH	lch(28.67, 44.25, 293.15°)
OKLab	oklab(39.17% 0.0029 -0.1165)
OKLCH	oklch(39.17% 0.117 271.4)
XYZ	xyz(7.0369, 5.7117, 22.2000)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303E83 #837530

analogous

#306783 #303E83 #4C3083

triadic

#303E83 #83303E #3E8330

tetradic

#303E83 #833067 #837530 #30834C

square

#303E83 #833067 #837530 #30834C

split-complementary

#303E83 #834C30 #678330

monochromatic

#0F1429 #202956 #303E83 #4053B0 #6677C7

Accessibility & contrast

On white

9.80

#303E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#303E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303E83

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303E83	#FFFFFF	#000000	##FFFFFF
##303E83	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174785

Deuteranopia (green-blind)

#024082

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #303e83;
/* rgb */ color: rgb(48, 62, 131);
/* oklch */ color: oklch(39.2% 0.117 271.4);

Tailwind

colors: {
  custom: {
    50: '#7173a7',
    500: '#303e83',
    950: '#000000',
  },
}

SCSS

$custom: #303e83;
$custom-light: #7173a7;
$custom-dark: #000000;

JSON

{
  "hex": "#303e83",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 229.88,
    "s": 46.369,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39167,
    "c": 0.11659,
    "h": 271.4
  },
  "luminance": 0.05712
}

Semantic roles & 50–950 ramp

primary

#303E83

secondary

#AEA161

accent

#C052D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #303E83

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

Preview Lab → · Contrast checker → · Palette generator →