#1F2F76#1F2F76

#1F2F76 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.9% C 0.123 H 269.1°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F76
RGB	rgb(31, 47, 118)
HSL	hsl(229, 58%, 29%)
HSV	hsv(229, 74%, 46%)
CMYK	cmyk(73.7%, 60.2%, 0%, 53.7%)
CIE-LAB	lab(22.42, 19.88, -42.68)
CIE-LCH	lch(22.42, 47.08, 294.98°)
OKLab	oklab(33.88% -0.0019 -0.123)
OKLCH	oklch(33.88% 0.123 269.1)
XYZ	xyz(4.8505, 3.6319, 17.5814)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F76 #76661F

analogous

#1F5B76 #1F2F76 #3B1F76

triadic

#1F2F76 #761F2F #2F761F

tetradic

#1F2F76 #761F5B #76661F #1F763B

square

#1F2F76 #761F5B #76661F #1F763B

split-complementary

#1F2F76 #763B1F #5B761F

monochromatic

#060A18 #121C46 #1F2F76 #2C42A6 #425CCD

Accessibility & contrast

On white

12.16

#1F2F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1F2F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F76

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F76	#FFFFFF	#000000	##FFFFFF
##1F2F76	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A78

Deuteranopia (green-blind)

#003275

Tritanopia (blue-blind)

#00414D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2f76;
/* rgb */ color: rgb(31, 47, 118);
/* oklch */ color: oklch(33.9% 0.123 269.1);

Tailwind

colors: {
  custom: {
    50: '#68679e',
    500: '#1f2f76',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f76;
$custom-light: #68679e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f76",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 118
  },
  "hsl": {
    "h": 228.966,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33875,
    "c": 0.12303,
    "h": 269.1
  },
  "luminance": 0.03632
}

Semantic roles & 50–950 ramp

primary

#1F2F76

secondary

#AA9847

accent

#C546E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1F2F76

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

Preview Lab → · Contrast checker → · Palette generator →