#1F1EBB#1F1EBB

#1F1EBB is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.7% C 0.228 H 269.1°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F1EBB
RGB	rgb(31, 30, 187)
HSL	hsl(240, 72%, 43%)
HSV	hsv(240, 84%, 73%)
CMYK	cmyk(83.4%, 84%, 0%, 26.7%)
CIE-LAB	lab(26.18, 54.22, -78.87)
CIE-LCH	lch(26.18, 95.70, 304.51°)
OKLab	oklab(38.74% -0.0035 -0.2283)
OKLCH	oklch(38.74% 0.228 269.1)
XYZ	xyz(9.9959, 4.8065, 47.4050)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1EBB #BABB1E

analogous

#1E6CBB #1F1EBB #6D1EBB

triadic

#1F1EBB #BB1F1E #1EBB1F

tetradic

#1F1EBB #BB1E6C #BABB1E #1EBB6D

square

#1F1EBB #BB1E6C #BABB1E #1EBB6D

split-complementary

#1F1EBB #BB6D1E #6CBB1E

monochromatic

#0E0D52 #161686 #1F1EBB #3837DF #6D6CE7

Accessibility & contrast

On white

10.71

#1F1EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1F1EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1EBB

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1EBB	#FFFFFF	#000000	##FFFFFF
##1F1EBB	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046BF

Deuteranopia (green-blind)

#0035B8

Tritanopia (blue-blind)

#00526F

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f1ebb;
/* rgb */ color: rgb(31, 30, 187);
/* oklch */ color: oklch(38.7% 0.228 269.1);

Tailwind

colors: {
  custom: {
    50: '#7b5fd1',
    500: '#1f1ebb',
    950: '#000000',
  },
}

SCSS

$custom: #1f1ebb;
$custom-light: #7b5fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1ebb",
  "rgb": {
    "r": 31,
    "g": 30,
    "b": 187
  },
  "hsl": {
    "h": 240.382,
    "s": 72.35,
    "l": 42.549
  },
  "oklch": {
    "l": 0.38736,
    "c": 0.22833,
    "h": 269.1
  },
  "luminance": 0.04808
}

Semantic roles & 50–950 ramp

primary

#1F1EBB

secondary

#CDCD67

accent

#EF39EE

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0C0514

muted

#7D7983

Preview Lab

Preview with #1F1EBB

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

Preview Lab → · Contrast checker → · Palette generator →