#1F29A6#1F29A6

#1F29A6 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.7% C 0.195 H 269.4°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#1F29A6
RGB	rgb(31, 41, 166)
HSL	hsl(236, 69%, 39%)
HSV	hsv(236, 81%, 65%)
CMYK	cmyk(81.3%, 75.3%, 0%, 34.9%)
CIE-LAB	lab(25.65, 41.75, -67.16)
CIE-LCH	lch(25.65, 79.07, 301.87°)
OKLab	oklab(37.65% -0.0022 -0.1946)
OKLCH	oklch(37.65% 0.195 269.4)
XYZ	xyz(8.2386, 4.6294, 36.5284)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F29A6 #A69C1F

analogous

#1F6CA6 #1F29A6 #581FA6

triadic

#1F29A6 #A61F29 #29A61F

tetradic

#1F29A6 #A61F6C #A69C1F #1FA658

square

#1F29A6 #A61F6C #A69C1F #1FA658

split-complementary

#1F29A6 #A6581F #6CA61F

monochromatic

#0C103F #151C72 #1F29A6 #2B38D7 #5E68E1

Accessibility & contrast

On white

10.90

#1F29A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1F29A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F29A6

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F29A6	#FFFFFF	#000000	##FFFFFF
##1F29A6	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043AA

Deuteranopia (green-blind)

#0036A4

Tritanopia (blue-blind)

#004E65

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f29a6;
/* rgb */ color: rgb(31, 41, 166);
/* oklch */ color: oklch(37.7% 0.195 269.4);

Tailwind

colors: {
  custom: {
    50: '#7564c2',
    500: '#1f29a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f29a6;
$custom-light: #7564c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f29a6",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 166
  },
  "hsl": {
    "h": 235.556,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37654,
    "c": 0.19457,
    "h": 269.4
  },
  "luminance": 0.0463
}

Semantic roles & 50–950 ramp

primary

#1F29A6

secondary

#C5BE5B

accent

#DE3CEB

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0513

muted

#7C7A82

Preview Lab

Preview with #1F29A6

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

Preview Lab → · Contrast checker → · Palette generator →