#1F4276#1F4276

#1F4276 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.2% C 0.098 H 258.3°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1F4276
RGB	rgb(31, 66, 118)
HSL	hsl(216, 58%, 29%)
HSV	hsv(216, 74%, 46%)
CMYK	cmyk(73.7%, 44.1%, 0%, 53.7%)
CIE-LAB	lab(28.10, 6.56, -33.51)
CIE-LCH	lch(28.10, 34.14, 281.07°)
OKLab	oklab(38.21% -0.0199 -0.0957)
OKLCH	oklch(38.21% 0.098 258.3)
XYZ	xyz(5.7821, 5.4951, 17.8920)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4276 #76531F

analogous

#1F6E76 #1F4276 #281F76

triadic

#1F4276 #761F42 #42761F

tetradic

#1F4276 #761F6E #76531F #1F7628

square

#1F4276 #761F6E #76531F #1F7628

split-complementary

#1F4276 #76281F #6E761F

monochromatic

#060E18 #122746 #1F4276 #2C5DA6 #427ACD

Accessibility & contrast

On white

10.00

#1F4276 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1F4276 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4276

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4276	#FFFFFF	#000000	##FFFFFF
##1F4276	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294778

Deuteranopia (green-blind)

#1A3F75

Tritanopia (blue-blind)

#004E56

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f4276;
/* rgb */ color: rgb(31, 66, 118);
/* oklch */ color: oklch(38.2% 0.098 258.3);

Tailwind

colors: {
  custom: {
    50: '#67759e',
    500: '#1f4276',
    950: '#000000',
  },
}

SCSS

$custom: #1f4276;
$custom-light: #67759e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4276",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 118
  },
  "hsl": {
    "h": 215.862,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38207,
    "c": 0.09777,
    "h": 258.3
  },
  "luminance": 0.05496
}

Semantic roles & 50–950 ramp

primary

#1F4276

secondary

#AA8247

accent

#A346E2

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1F4276

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

Preview Lab → · Contrast checker → · Palette generator →