#1F1071#1F1071

#1F1071 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.152 H 277.3°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#1F1071
RGB	rgb(31, 16, 113)
HSL	hsl(249, 75%, 25%)
HSV	hsv(249, 86%, 44%)
CMYK	cmyk(72.6%, 85.8%, 0%, 55.7%)
CIE-LAB	lab(14.70, 37.58, -52.12)
CIE-LCH	lch(14.70, 64.26, 305.79°)
OKLab	oklab(28.15% 0.0194 -0.1506)
OKLCH	oklch(28.15% 0.152 277.3)
XYZ	xyz(3.7300, 1.8538, 15.7808)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1071 #627110

analogous

#103271 #1F1071 #4F1071

triadic

#1F1071 #711F10 #10711F

tetradic

#1F1071 #711032 #627110 #10714F

square

#1F1071 #711032 #627110 #10714F

split-complementary

#1F1071 #714F10 #327110

monochromatic

#07041B #10083B #1F1071 #2E18A7 #3C1FDC

Accessibility & contrast

On white

15.32

#1F1071 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1F1071 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1071

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1071	#FFFFFF	#000000	##FFFFFF
##1F1071	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00216F

Tritanopia (blue-blind)

#002F42

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f1071;
/* rgb */ color: rgb(31, 16, 113);
/* oklch */ color: oklch(28.2% 0.152 277.3);

Tailwind

colors: {
  custom: {
    50: '#69529b',
    500: '#1f1071',
    950: '#000000',
  },
}

SCSS

$custom: #1f1071;
$custom-light: #69529b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1071",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 113
  },
  "hsl": {
    "h": 249.278,
    "s": 75.194,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28154,
    "c": 0.15185,
    "h": 277.3
  },
  "luminance": 0.01854
}

Semantic roles & 50–950 ramp

primary

#1F1071

secondary

#97A934

accent

#F236D5

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F1071

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

Preview Lab → · Contrast checker → · Palette generator →