#30407B#30407B

#30407B is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.0% C 0.102 H 269.8°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#30407B
RGB	rgb(48, 64, 123)
HSL	hsl(227, 44%, 34%)
HSV	hsv(227, 61%, 48%)
CMYK	cmyk(61%, 48%, 0%, 51.8%)
CIE-LAB	lab(28.71, 13.08, -35.64)
CIE-LCH	lch(28.71, 37.96, 290.16°)
OKLab	oklab(39.02% -0.0004 -0.1017)
OKLCH	oklch(39.02% 0.102 269.8)
XYZ	xyz(6.6263, 5.7247, 19.4908)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#30407B #7B6B30

analogous

#30657B #30407B #45307B

triadic

#30407B #7B3040 #407B30

tetradic

#30407B #7B3065 #7B6B30 #307B45

square

#30407B #7B3065 #7B6B30 #307B45

split-complementary

#30407B #7B4530 #657B30

monochromatic

#0E1223 #1F294F #30407B #4157A7 #6377C2

Accessibility & contrast

On white

9.79

#30407B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#30407B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #30407B

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##30407B	#FFFFFF	#000000	##FFFFFF
##30407B	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24477D

Deuteranopia (green-blind)

#19417A

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #30407b;
/* rgb */ color: rgb(48, 64, 123);
/* oklch */ color: oklch(39.0% 0.102 269.8);

Tailwind

colors: {
  custom: {
    50: '#6f74a1',
    500: '#30407b',
    950: '#000000',
  },
}

SCSS

$custom: #30407b;
$custom-light: #6f74a1;
$custom-dark: #000000;

JSON

{
  "hex": "#30407b",
  "rgb": {
    "r": 48,
    "g": 64,
    "b": 123
  },
  "hsl": {
    "h": 227.2,
    "s": 43.86,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39018,
    "c": 0.10166,
    "h": 269.8
  },
  "luminance": 0.05725
}

Semantic roles & 50–950 ramp

primary

#30407B

secondary

#A9995D

accent

#B854D4

background

#F7F7FA

surface

#EDEDF3

border

#C8C8CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #30407B

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

Preview Lab → · Contrast checker → · Palette generator →