#1F127C#1F127C

#1F127C is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.7% C 0.164 H 275.3°. Best body text is #FFFFFF at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#1F127C
RGB	rgb(31, 18, 124)
HSL	hsl(247, 75%, 28%)
HSV	hsv(247, 85%, 49%)
CMYK	cmyk(75%, 85.5%, 0%, 51.4%)
CIE-LAB	lab(16.40, 40.13, -56.40)
CIE-LCH	lch(16.40, 69.22, 305.44°)
OKLab	oklab(29.72% 0.0151 -0.163)
OKLCH	oklch(29.72% 0.164 275.3)
XYZ	xyz(4.4183, 2.1787, 19.2526)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F127C #6F7C12

analogous

#123A7C #1F127C #54127C

triadic

#1F127C #7C1F12 #127C1F

tetradic

#1F127C #7C123A #6F7C12 #127C54

square

#1F127C #7C123A #6F7C12 #127C54

split-complementary

#1F127C #7C5412 #3A7C12

monochromatic

#07041B #120A47 #1F127C #2C1AB1 #3F29E0

Accessibility & contrast

On white

14.63

#1F127C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F127C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F127C

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F127C	#FFFFFF	#000000	##FFFFFF
##1F127C	1.00	14.63	1.44	14.63
#FFFFFF	14.63	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7F

Deuteranopia (green-blind)

#00247A

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f127c;
/* rgb */ color: rgb(31, 18, 124);
/* oklch */ color: oklch(29.7% 0.164 275.3);

Tailwind

colors: {
  custom: {
    50: '#6c54a3',
    500: '#1f127c',
    950: '#000000',
  },
}

SCSS

$custom: #1f127c;
$custom-light: #6c54a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f127c",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 124
  },
  "hsl": {
    "h": 247.358,
    "s": 74.648,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29724,
    "c": 0.16373,
    "h": 275.3
  },
  "luminance": 0.02179
}

Semantic roles & 50–950 ramp

primary

#1F127C

secondary

#A3B238

accent

#F137DA

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F127C

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

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