#1F2FA7#1F2FA7

#1F2FA7 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.7% C 0.190 H 268.6°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F2FA7
RGB	rgb(31, 47, 167)
HSL	hsl(233, 69%, 39%)
HSV	hsv(233, 81%, 65%)
CMYK	cmyk(81.4%, 71.9%, 0%, 34.5%)
CIE-LAB	lab(27.06, 38.49, -65.44)
CIE-LCH	lch(27.06, 75.92, 300.46°)
OKLab	oklab(38.69% -0.0045 -0.1896)
OKLCH	oklch(38.69% 0.19 268.6)
XYZ	xyz(8.5542, 5.1134, 37.0879)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2FA7 #A7971F

analogous

#1F73A7 #1F2FA7 #531FA7

triadic

#1F2FA7 #A71F2F #2FA71F

tetradic

#1F2FA7 #A71F73 #A7971F #1FA753

square

#1F2FA7 #A71F73 #A7971F #1FA753

split-complementary

#1F2FA7 #A7531F #73A71F

monochromatic

#0C1240 #152073 #1F2FA7 #2B40D8 #5F6EE1

Accessibility & contrast

On white

10.38

#1F2FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1F2FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2FA7

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2FA7	#FFFFFF	#000000	##FFFFFF
##1F2FA7	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AB

Deuteranopia (green-blind)

#0039A5

Tritanopia (blue-blind)

#005168

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f2fa7;
/* rgb */ color: rgb(31, 47, 167);
/* oklch */ color: oklch(38.7% 0.190 268.6);

Tailwind

colors: {
  custom: {
    50: '#7468c2',
    500: '#1f2fa7',
    950: '#000000',
  },
}

SCSS

$custom: #1f2fa7;
$custom-light: #7468c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2fa7",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 167
  },
  "hsl": {
    "h": 232.941,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.3869,
    "c": 0.18966,
    "h": 268.6
  },
  "luminance": 0.05114
}

Semantic roles & 50–950 ramp

primary

#1F2FA7

secondary

#C6B95C

accent

#D73CEC

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #1F2FA7

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

Preview Lab → · Contrast checker → · Palette generator →