#1F2A75#1F2A75

#1F2A75 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.8% C 0.128 H 271.0°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A75
RGB	rgb(31, 42, 117)
HSL	hsl(232, 58%, 29%)
HSV	hsv(232, 74%, 46%)
CMYK	cmyk(73.5%, 64.1%, 0%, 54.1%)
CIE-LAB	lab(20.95, 23.00, -44.43)
CIE-LCH	lch(20.95, 50.03, 297.37°)
OKLab	oklab(32.76% 0.0023 -0.1282)
OKLCH	oklch(32.76% 0.128 271)
XYZ	xyz(4.6028, 3.2311, 17.2073)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A75 #756A1F

analogous

#1F5575 #1F2A75 #3F1F75

triadic

#1F2A75 #751F2A #2A751F

tetradic

#1F2A75 #751F55 #756A1F #1F753F

square

#1F2A75 #751F55 #756A1F #1F753F

split-complementary

#1F2A75 #753F1F #55751F

monochromatic

#060918 #121945 #1F2A75 #2C3BA5 #4253CD

Accessibility & contrast

On white

12.76

#1F2A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F2A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A75

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A75	#FFFFFF	#000000	##FFFFFF
##1F2A75	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003677

Deuteranopia (green-blind)

#002E74

Tritanopia (blue-blind)

#003D4B

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2a75;
/* rgb */ color: rgb(31, 42, 117);
/* oklch */ color: oklch(32.8% 0.128 271.0);

Tailwind

colors: {
  custom: {
    50: '#68639d',
    500: '#1f2a75',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a75;
$custom-light: #68639d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a75",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 117
  },
  "hsl": {
    "h": 232.326,
    "s": 58.108,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32757,
    "c": 0.12825,
    "h": 271
  },
  "luminance": 0.03232
}

Semantic roles & 50–950 ramp

primary

#1F2A75

secondary

#A99C47

accent

#CE46E1

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1F2A75

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

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