#1F2B76#1F2B76

#1F2B76 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.128 H 270.7°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B76
RGB	rgb(31, 43, 118)
HSL	hsl(232, 58%, 29%)
HSV	hsv(232, 74%, 46%)
CMYK	cmyk(73.7%, 63.6%, 0%, 53.7%)
CIE-LAB	lab(21.31, 22.69, -44.48)
CIE-LCH	lch(21.31, 49.93, 297.03°)
OKLab	oklab(33.05% 0.0015 -0.1284)
OKLCH	oklch(33.05% 0.128 270.7)
XYZ	xyz(4.6979, 3.3266, 17.5305)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B76 #766A1F

analogous

#1F5776 #1F2B76 #3F1F76

triadic

#1F2B76 #761F2B #2B761F

tetradic

#1F2B76 #761F57 #766A1F #1F763F

square

#1F2B76 #761F57 #766A1F #1F763F

split-complementary

#1F2B76 #763F1F #57761F

monochromatic

#060918 #121946 #1F2B76 #2C3DA6 #4255CD

Accessibility & contrast

On white

12.61

#1F2B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B76

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B76	#FFFFFF	#000000	##FFFFFF
##1F2B76	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003778

Deuteranopia (green-blind)

#002F75

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2b76;
/* rgb */ color: rgb(31, 43, 118);
/* oklch */ color: oklch(33.1% 0.128 270.7);

Tailwind

colors: {
  custom: {
    50: '#68649e',
    500: '#1f2b76',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b76;
$custom-light: #68649e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b76",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 118
  },
  "hsl": {
    "h": 231.724,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33051,
    "c": 0.12838,
    "h": 270.7
  },
  "luminance": 0.03327
}

Semantic roles & 50–950 ramp

primary

#1F2B76

secondary

#AA9C47

accent

#CC46E2

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1F2B76

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

Preview Lab → · Contrast checker → · Palette generator →