#1F2176#1F2176

#1F2176 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.141 H 273.6°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#1F2176
RGB	rgb(31, 33, 118)
HSL	hsl(239, 58%, 29%)
HSV	hsv(239, 74%, 46%)
CMYK	cmyk(73.7%, 72%, 0%, 53.7%)
CIE-LAB	lab(18.74, 29.48, -48.68)
CIE-LCH	lch(18.74, 56.91, 301.20°)
OKLab	oklab(31.18% 0.0089 -0.1407)
OKLCH	oklch(31.18% 0.141 273.6)
XYZ	xyz(4.3779, 2.6866, 17.4239)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2176 #76741F

analogous

#1F4D76 #1F2176 #491F76

triadic

#1F2176 #761F21 #21761F

tetradic

#1F2176 #761F4D #76741F #1F7649

square

#1F2176 #761F4D #76741F #1F7649

split-complementary

#1F2176 #76491F #4D761F

monochromatic

#060718 #121346 #1F2176 #2C2FA6 #4245CD

Accessibility & contrast

On white

13.66

#1F2176 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1F2176 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2176

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2176	#FFFFFF	#000000	##FFFFFF
##1F2176	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003279

Deuteranopia (green-blind)

#002974

Tritanopia (blue-blind)

#003848

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f2176;
/* rgb */ color: rgb(31, 33, 118);
/* oklch */ color: oklch(31.2% 0.141 273.6);

Tailwind

colors: {
  custom: {
    50: '#695d9e',
    500: '#1f2176',
    950: '#000000',
  },
}

SCSS

$custom: #1f2176;
$custom-light: #695d9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2176",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 118
  },
  "hsl": {
    "h": 238.621,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31177,
    "c": 0.14101,
    "h": 273.6
  },
  "luminance": 0.02687
}

Semantic roles & 50–950 ramp

primary

#1F2176

secondary

#AAA747

accent

#DE46E2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1F2176

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

Preview Lab → · Contrast checker → · Palette generator →