#1F1EB3#1F1EB3

#1F1EB3 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.8% C 0.219 H 269.5°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F1EB3
RGB	rgb(31, 30, 179)
HSL	hsl(240, 71%, 41%)
HSV	hsv(240, 83%, 70%)
CMYK	cmyk(82.7%, 83.2%, 0%, 29.8%)
CIE-LAB	lab(25.18, 51.77, -75.76)
CIE-LCH	lch(25.18, 91.76, 304.35°)
OKLab	oklab(37.76% -0.0018 -0.2193)
OKLCH	oklch(37.76% 0.219 269.5)
XYZ	xyz(9.1633, 4.4734, 43.0196)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1EB3 #B2B31E

analogous

#1E67B3 #1F1EB3 #691EB3

triadic

#1F1EB3 #B31F1E #1EB31F

tetradic

#1F1EB3 #B31E67 #B2B31E #1EB369

square

#1F1EB3 #B31E67 #B2B31E #1EB369

split-complementary

#1F1EB3 #B3691E #67B31E

monochromatic

#0D0C4A #16157F #1F1EB3 #3332DD #6766E5

Accessibility & contrast

On white

11.08

#1F1EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1F1EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1EB3

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1EB3	#FFFFFF	#000000	##FFFFFF
##1F1EB3	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0034B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f1eb3;
/* rgb */ color: rgb(31, 30, 179);
/* oklch */ color: oklch(37.8% 0.219 269.5);

Tailwind

colors: {
  custom: {
    50: '#795fcb',
    500: '#1f1eb3',
    950: '#000000',
  },
}

SCSS

$custom: #1f1eb3;
$custom-light: #795fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1eb3",
  "rgb": {
    "r": 31,
    "g": 30,
    "b": 179
  },
  "hsl": {
    "h": 240.403,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.37763,
    "c": 0.21933,
    "h": 269.5
  },
  "luminance": 0.04475
}

Semantic roles & 50–950 ramp

primary

#1F1EB3

secondary

#CACB62

accent

#EE3AED

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #1F1EB3

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

Preview Lab → · Contrast checker → · Palette generator →