#304E7D#304E7D

#304E7D is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.4% C 0.087 H 259.1°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#304E7D
RGB	rgb(48, 78, 125)
HSL	hsl(217, 45%, 34%)
HSV	hsv(217, 62%, 49%)
CMYK	cmyk(61.6%, 37.6%, 0%, 51%)
CIE-LAB	lab(33.04, 4.43, -29.99)
CIE-LCH	lch(33.04, 30.31, 278.40°)
OKLab	oklab(42.4% -0.0164 -0.0849)
OKLCH	oklch(42.4% 0.087 259.1)
XYZ	xyz(7.6437, 7.5572, 20.4539)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304E7D #7D5F30

analogous

#30757D #304E7D #39307D

triadic

#304E7D #7D304E #4E7D30

tetradic

#304E7D #7D3075 #7D5F30 #307D39

square

#304E7D #7D3075 #7D5F30 #307D39

split-complementary

#304E7D #7D3930 #757D30

monochromatic

#0E1725 #1F3251 #304E7D #416AA9 #6489C3

Accessibility & contrast

On white

8.36

#304E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#304E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304E7D

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304E7D	#FFFFFF	#000000	##FFFFFF
##304E7D	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A527F

Deuteranopia (green-blind)

#304A7C

Tritanopia (blue-blind)

#00595F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #304e7d;
/* rgb */ color: rgb(48, 78, 125);
/* oklch */ color: oklch(42.4% 0.087 259.1);

Tailwind

colors: {
  custom: {
    50: '#6f7fa3',
    500: '#304e7d',
    950: '#000000',
  },
}

SCSS

$custom: #304e7d;
$custom-light: #6f7fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#304e7d",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 125
  },
  "hsl": {
    "h": 216.623,
    "s": 44.509,
    "l": 33.922
  },
  "oklch": {
    "l": 0.42399,
    "c": 0.08651,
    "h": 259.1
  },
  "luminance": 0.07558
}

Semantic roles & 50–950 ramp

primary

#304E7D

secondary

#AB8D5E

accent

#A254D4

background

#F7F7FA

surface

#EDEEF3

border

#C8C9CD

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #304E7D

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

Preview Lab → · Contrast checker → · Palette generator →