#303B60#303B60

#303B60 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.066 H 270.3°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#303B60
RGB	rgb(48, 59, 96)
HSL	hsl(226, 33%, 28%)
HSV	hsv(226, 50%, 38%)
CMYK	cmyk(50%, 38.5%, 0%, 62.4%)
CIE-LAB	lab(25.56, 6.85, -23.40)
CIE-LCH	lch(25.56, 24.39, 286.31°)
OKLab	oklab(36.08% 0.0003 -0.0659)
OKLCH	oklch(36.08% 0.066 270.3)
XYZ	xyz(4.8935, 4.6005, 11.6942)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303B60 #605530

analogous

#305360 #303B60 #3D3060

triadic

#303B60 #60303B #3B6030

tetradic

#303B60 #603053 #605530 #30603D

square

#303B60 #603053 #605530 #30603D

split-complementary

#303B60 #603D30 #536030

monochromatic

#0A0D14 #1C2237 #303B60 #445489 #5D6FAE

Accessibility & contrast

On white

10.94

#303B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#303B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303B60

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303B60	#FFFFFF	#000000	##FFFFFF
##303B60	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3F61

Deuteranopia (green-blind)

#293B5F

Tritanopia (blue-blind)

#1E4349

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #303b60;
/* rgb */ color: rgb(48, 59, 96);
/* oklch */ color: oklch(36.1% 0.066 270.3);

Tailwind

colors: {
  custom: {
    50: '#6b708d',
    500: '#303b60',
    950: '#000000',
  },
}

SCSS

$custom: #303b60;
$custom-light: #6b708d;
$custom-dark: #000000;

JSON

{
  "hex": "#303b60",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 96
  },
  "hsl": {
    "h": 226.25,
    "s": 33.333,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36075,
    "c": 0.06591,
    "h": 270.3
  },
  "luminance": 0.04601
}

Semantic roles & 50–950 ramp

primary

#303B60

secondary

#91855A

accent

#B15EC9

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#07070C

muted

#7A7A7D

Preview Lab

Preview with #303B60

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

Preview Lab → · Contrast checker → · Palette generator →