#1F1B60#1F1B60

#1F1B60 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.8% C 0.118 H 278.1°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F1B60
RGB	rgb(31, 27, 96)
HSL	hsl(243, 56%, 24%)
HSV	hsv(243, 72%, 38%)
CMYK	cmyk(67.7%, 71.9%, 0%, 62.4%)
CIE-LAB	lab(15.06, 25.32, -40.36)
CIE-LCH	lch(15.06, 47.65, 302.10°)
OKLab	oklab(27.84% 0.0166 -0.1164)
OKLCH	oklch(27.84% 0.118 278.1)
XYZ	xyz(3.0676, 1.9195, 11.2729)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1B60 #5C601B

analogous

#1B3A60 #1F1B60 #421B60

triadic

#1F1B60 #601F1B #1B601F

tetradic

#1F1B60 #601B3A #5C601B #1B6042

square

#1F1B60 #601B3A #5C601B #1B6042

split-complementary

#1F1B60 #60421B #3A601B

monochromatic

#080718 #100E30 #1F1B60 #2E2890 #3E36C0

Accessibility & contrast

On white

15.17

#1F1B60 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1F1B60 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1B60

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1B60	#FFFFFF	#000000	##FFFFFF
##1F1B60	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002962

Deuteranopia (green-blind)

#00235F

Tritanopia (blue-blind)

#002D3B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1f1b60;
/* rgb */ color: rgb(31, 27, 96);
/* oklch */ color: oklch(27.8% 0.118 278.1);

Tailwind

colors: {
  custom: {
    50: '#64588e',
    500: '#1f1b60',
    950: '#000000',
  },
}

SCSS

$custom: #1f1b60;
$custom-light: #64588e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1b60",
  "rgb": {
    "r": 31,
    "g": 27,
    "b": 96
  },
  "hsl": {
    "h": 243.478,
    "s": 56.098,
    "l": 24.118
  },
  "oklch": {
    "l": 0.2784,
    "c": 0.11757,
    "h": 278.1
  },
  "luminance": 0.0192
}

Semantic roles & 50–950 ramp

primary

#1F1B60

secondary

#919641

accent

#DF48D7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #1F1B60

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

Preview Lab → · Contrast checker → · Palette generator →