#1F3076#1F3076

#1F3076 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.122 H 268.7°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1F3076
RGB	rgb(31, 48, 118)
HSL	hsl(228, 58%, 29%)
HSV	hsv(228, 74%, 46%)
CMYK	cmyk(73.7%, 59.3%, 0%, 53.7%)
CIE-LAB	lab(22.70, 19.17, -42.22)
CIE-LCH	lch(22.70, 46.37, 294.43°)
OKLab	oklab(34.09% -0.0027 -0.1216)
OKLCH	oklch(34.09% 0.122 268.7)
XYZ	xyz(4.8909, 3.7127, 17.5949)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3076 #76651F

analogous

#1F5C76 #1F3076 #3A1F76

triadic

#1F3076 #761F30 #30761F

tetradic

#1F3076 #761F5C #76651F #1F763A

square

#1F3076 #761F5C #76651F #1F763A

split-complementary

#1F3076 #763A1F #5C761F

monochromatic

#060A18 #121C46 #1F3076 #2C44A6 #425DCD

Accessibility & contrast

On white

12.05

#1F3076 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F3076 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3076

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3076	#FFFFFF	#000000	##FFFFFF
##1F3076	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A78

Deuteranopia (green-blind)

#003275

Tritanopia (blue-blind)

#00414E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f3076;
/* rgb */ color: rgb(31, 48, 118);
/* oklch */ color: oklch(34.1% 0.122 268.7);

Tailwind

colors: {
  custom: {
    50: '#67689e',
    500: '#1f3076',
    950: '#000000',
  },
}

SCSS

$custom: #1f3076;
$custom-light: #67689e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3076",
  "rgb": {
    "r": 31,
    "g": 48,
    "b": 118
  },
  "hsl": {
    "h": 228.276,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34086,
    "c": 0.12168,
    "h": 268.7
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#1F3076

secondary

#AA9647

accent

#C346E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F3076

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

Preview Lab → · Contrast checker → · Palette generator →