#1F29A0#1F29A0

#1F29A0 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.0% C 0.187 H 269.6°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#1F29A0
RGB	rgb(31, 41, 160)
HSL	hsl(235, 68%, 37%)
HSV	hsv(235, 81%, 63%)
CMYK	cmyk(80.6%, 74.4%, 0%, 37.3%)
CIE-LAB	lab(25.00, 39.65, -64.60)
CIE-LCH	lch(25.00, 75.80, 301.54°)
OKLab	oklab(36.99% -0.0013 -0.1871)
OKLCH	oklch(36.99% 0.187 269.6)
XYZ	xyz(7.7010, 4.4144, 33.6971)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F29A0 #A0961F

analogous

#1F69A0 #1F29A0 #561FA0

triadic

#1F29A0 #A01F29 #29A01F

tetradic

#1F29A0 #A01F69 #A0961F #1FA056

square

#1F29A0 #A01F69 #A0961F #1FA056

split-complementary

#1F29A0 #A0561F #69A01F

monochromatic

#0B0F39 #151C6D #1F29A0 #2936D3 #5A65DF

Accessibility & contrast

On white

11.15

#1F29A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1F29A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F29A0

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F29A0	#FFFFFF	#000000	##FFFFFF
##1F29A0	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A3

Deuteranopia (green-blind)

#00359E

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f29a0;
/* rgb */ color: rgb(31, 41, 160);
/* oklch */ color: oklch(37.0% 0.187 269.6);

Tailwind

colors: {
  custom: {
    50: '#7364bd',
    500: '#1f29a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f29a0;
$custom-light: #7364bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f29a0",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 160
  },
  "hsl": {
    "h": 235.349,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36993,
    "c": 0.18713,
    "h": 269.6
  },
  "luminance": 0.04415
}

Semantic roles & 50–950 ramp

primary

#1F29A0

secondary

#C3BB58

accent

#DD3DEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #1F29A0

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

Preview Lab → · Contrast checker → · Palette generator →