#1F296F#1F296F

#1F296F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.0% C 0.121 H 271.5°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F296F
RGB	rgb(31, 41, 111)
HSL	hsl(233, 56%, 28%)
HSV	hsv(233, 72%, 44%)
CMYK	cmyk(72.1%, 63.1%, 0%, 56.5%)
CIE-LAB	lab(20.14, 21.35, -41.88)
CIE-LCH	lch(20.14, 47.01, 297.01°)
OKLab	oklab(32% 0.0032 -0.1208)
OKLCH	oklch(32% 0.121 271.5)
XYZ	xyz(4.2263, 3.0245, 15.3969)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F296F #6F651F

analogous

#1F516F #1F296F #3D1F6F

triadic

#1F296F #6F1F29 #296F1F

tetradic

#1F296F #6F1F51 #6F651F #1F6F3D

square

#1F296F #6F1F51 #6F651F #1F6F3D

split-complementary

#1F296F #6F3D1F #516F1F

monochromatic

#070918 #12173F #1F296F #2C3B9F #3F50C9

Accessibility & contrast

On white

13.08

#1F296F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1F296F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F296F

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F296F	#FFFFFF	#000000	##FFFFFF
##1F296F	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003471

Deuteranopia (green-blind)

#002D6E

Tritanopia (blue-blind)

#003B47

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1f296f;
/* rgb */ color: rgb(31, 41, 111);
/* oklch */ color: oklch(32.0% 0.121 271.5);

Tailwind

colors: {
  custom: {
    50: '#666299',
    500: '#1f296f',
    950: '#000000',
  },
}

SCSS

$custom: #1f296f;
$custom-light: #666299;
$custom-dark: #000000;

JSON

{
  "hex": "#1f296f",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 111
  },
  "hsl": {
    "h": 232.5,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31995,
    "c": 0.12081,
    "h": 271.5
  },
  "luminance": 0.03025
}

Semantic roles & 50–950 ramp

primary

#1F296F

secondary

#A39747

accent

#CD48E0

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1F296F

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

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