#1F29A9#1F29A9

#1F29A9 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 38.0% C 0.198 H 269.2°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F29A9
RGB	rgb(31, 41, 169)
HSL	hsl(236, 69%, 39%)
HSV	hsv(236, 82%, 66%)
CMYK	cmyk(81.7%, 75.7%, 0%, 33.7%)
CIE-LAB	lab(25.98, 42.78, -68.42)
CIE-LCH	lch(25.98, 80.69, 302.02°)
OKLab	oklab(37.99% -0.0026 -0.1982)
OKLCH	oklch(37.99% 0.198 269.2)
XYZ	xyz(8.5170, 4.7408, 37.9946)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F29A9 #A99F1F

analogous

#1F6EA9 #1F29A9 #5A1FA9

triadic

#1F29A9 #A91F29 #29A91F

tetradic

#1F29A9 #A91F6E #A99F1F #1FA95A

square

#1F29A9 #A91F6E #A99F1F #1FA95A

split-complementary

#1F29A9 #A95A1F #6EA91F

monochromatic

#0C1042 #161C75 #1F29A9 #2D39D8 #606AE2

Accessibility & contrast

On white

10.78

#1F29A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1F29A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F29A9

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F29A9	#FFFFFF	#000000	##FFFFFF
##1F29A9	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044AD

Deuteranopia (green-blind)

#0037A7

Tritanopia (blue-blind)

#004F67

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f29a9;
/* rgb */ color: rgb(31, 41, 169);
/* oklch */ color: oklch(38.0% 0.198 269.2);

Tailwind

colors: {
  custom: {
    50: '#7564c4',
    500: '#1f29a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f29a9;
$custom-light: #7564c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f29a9",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 169
  },
  "hsl": {
    "h": 235.652,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.37987,
    "c": 0.19825,
    "h": 269.2
  },
  "luminance": 0.04742
}

Semantic roles & 50–950 ramp

primary

#1F29A9

secondary

#C7BF5D

accent

#DF3CEC

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1F29A9

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

Preview Lab → · Contrast checker → · Palette generator →