#303D64#303D64

#303D64 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.070 H 268.9°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#303D64
RGB	rgb(48, 61, 100)
HSL	hsl(225, 35%, 29%)
HSV	hsv(225, 52%, 39%)
CMYK	cmyk(52%, 39%, 0%, 60.8%)
CIE-LAB	lab(26.41, 6.87, -24.67)
CIE-LCH	lch(26.41, 25.60, 285.57°)
OKLab	oklab(36.8% -0.0014 -0.0696)
OKLCH	oklch(36.8% 0.07 268.9)
XYZ	xyz(5.1872, 4.8856, 12.7238)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303D64 #645730

analogous

#305764 #303D64 #3D3064

triadic

#303D64 #64303D #3D6430

tetradic

#303D64 #643057 #645730 #30643D

square

#303D64 #643057 #645730 #30643D

split-complementary

#303D64 #643D30 #576430

monochromatic

#0A0D15 #1C243B #303D64 #44568D #5D72B1

Accessibility & contrast

On white

10.62

#303D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#303D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303D64

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303D64	#FFFFFF	#000000	##FFFFFF
##303D64	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#293C63

Tritanopia (blue-blind)

#1B454B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #303d64;
/* rgb */ color: rgb(48, 61, 100);
/* oklch */ color: oklch(36.8% 0.070 268.9);

Tailwind

colors: {
  custom: {
    50: '#6c7290',
    500: '#303d64',
    950: '#000000',
  },
}

SCSS

$custom: #303d64;
$custom-light: #6c7290;
$custom-dark: #000000;

JSON

{
  "hex": "#303d64",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 225,
    "s": 35.135,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36798,
    "c": 0.06958,
    "h": 268.9
  },
  "luminance": 0.04886
}

Semantic roles & 50–950 ramp

primary

#303D64

secondary

#95875A

accent

#B05DCB

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #303D64

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

Preview Lab → · Contrast checker → · Palette generator →