#1F296B#1F296B

#1F296B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.6% C 0.115 H 271.6°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F296B
RGB	rgb(31, 41, 107)
HSL	hsl(232, 55%, 27%)
HSV	hsv(232, 71%, 42%)
CMYK	cmyk(71%, 61.7%, 0%, 58%)
CIE-LAB	lab(19.80, 19.79, -39.86)
CIE-LCH	lch(19.80, 44.50, 296.40°)
OKLab	oklab(31.63% 0.0033 -0.1148)
OKLCH	oklch(31.63% 0.115 271.6)
XYZ	xyz(4.0110, 2.9383, 14.2628)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F296B #6B611F

analogous

#1F4F6B #1F296B #3B1F6B

triadic

#1F296B #6B1F29 #296B1F

tetradic

#1F296B #6B1F4F #6B611F #1F6B3B

square

#1F296B #6B1F4F #6B611F #1F6B3B

split-complementary

#1F296B #6B3B1F #4F6B1F

monochromatic

#070918 #11173C #1F296B #2D3B9A #3D50C7

Accessibility & contrast

On white

13.23

#1F296B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F296B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F296B

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F296B	#FFFFFF	#000000	##FFFFFF
##1F296B	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336D

Deuteranopia (green-blind)

#002D6A

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f296b;
/* rgb */ color: rgb(31, 41, 107);
/* oklch */ color: oklch(31.6% 0.115 271.6);

Tailwind

colors: {
  custom: {
    50: '#656296',
    500: '#1f296b',
    950: '#000000',
  },
}

SCSS

$custom: #1f296b;
$custom-light: #656296;
$custom-dark: #000000;

JSON

{
  "hex": "#1f296b",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 107
  },
  "hsl": {
    "h": 232.105,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.3163,
    "c": 0.11486,
    "h": 271.6
  },
  "luminance": 0.02939
}

Semantic roles & 50–950 ramp

primary

#1F296B

secondary

#9F9447

accent

#CB49DE

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1F296B

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

Preview Lab → · Contrast checker → · Palette generator →