#1F127D#1F127D

#1F127D is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.8% C 0.165 H 275.2°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F127D
RGB	rgb(31, 18, 125)
HSL	hsl(247, 75%, 28%)
HSV	hsv(247, 86%, 49%)
CMYK	cmyk(75.2%, 85.6%, 0%, 51%)
CIE-LAB	lab(16.52, 40.45, -56.83)
CIE-LCH	lch(16.52, 69.75, 305.44°)
OKLab	oklab(29.85% 0.0148 -0.1643)
OKLCH	oklch(29.85% 0.165 275.2)
XYZ	xyz(4.4818, 2.2041, 19.5873)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F127D #707D12

analogous

#123A7D #1F127D #54127D

triadic

#1F127D #7D1F12 #127D1F

tetradic

#1F127D #7D123A #707D12 #127D54

square

#1F127D #7D123A #707D12 #127D54

split-complementary

#1F127D #7D5412 #3A7D12

monochromatic

#07041B #120A48 #1F127D #2C1AB2 #3F29E0

Accessibility & contrast

On white

14.57

#1F127D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F127D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F127D

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F127D	#FFFFFF	#000000	##FFFFFF
##1F127D	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D80

Deuteranopia (green-blind)

#00247B

Tritanopia (blue-blind)

#003449

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f127d;
/* rgb */ color: rgb(31, 18, 125);
/* oklch */ color: oklch(29.8% 0.165 275.2);

Tailwind

colors: {
  custom: {
    50: '#6c54a4',
    500: '#1f127d',
    950: '#000000',
  },
}

SCSS

$custom: #1f127d;
$custom-light: #6c54a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f127d",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 125
  },
  "hsl": {
    "h": 247.29,
    "s": 74.825,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29847,
    "c": 0.16495,
    "h": 275.2
  },
  "luminance": 0.02205
}

Semantic roles & 50–950 ramp

primary

#1F127D

secondary

#A4B338

accent

#F136DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F127D

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

Preview Lab → · Contrast checker → · Palette generator →