#1F27A0#1F27A0

#1F27A0 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.189 H 269.8°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#1F27A0
RGB	rgb(31, 39, 160)
HSL	hsl(236, 68%, 37%)
HSV	hsv(236, 81%, 63%)
CMYK	cmyk(80.6%, 75.6%, 0%, 37.3%)
CIE-LAB	lab(24.57, 40.83, -65.30)
CIE-LCH	lch(24.57, 77.01, 302.02°)
OKLab	oklab(36.69% -0.0005 -0.1891)
OKLCH	oklch(36.69% 0.189 269.8)
XYZ	xyz(7.6336, 4.2795, 33.6746)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F27A0 #A0981F

analogous

#1F68A0 #1F27A0 #571FA0

triadic

#1F27A0 #A01F27 #27A01F

tetradic

#1F27A0 #A01F68 #A0981F #1FA057

square

#1F27A0 #A01F68 #A0981F #1FA057

split-complementary

#1F27A0 #A0571F #68A01F

monochromatic

#0B0E39 #151B6D #1F27A0 #2933D3 #5A63DF

Accessibility & contrast

On white

11.31

#1F27A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1F27A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F27A0

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F27A0	#FFFFFF	#000000	##FFFFFF
##1F27A0	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A4

Deuteranopia (green-blind)

#00349E

Tritanopia (blue-blind)

#004B62

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f27a0;
/* rgb */ color: rgb(31, 39, 160);
/* oklch */ color: oklch(36.7% 0.189 269.8);

Tailwind

colors: {
  custom: {
    50: '#7362bd',
    500: '#1f27a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f27a0;
$custom-light: #7362bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f27a0",
  "rgb": {
    "r": 31,
    "g": 39,
    "b": 160
  },
  "hsl": {
    "h": 236.279,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36693,
    "c": 0.18914,
    "h": 269.8
  },
  "luminance": 0.0428
}

Semantic roles & 50–950 ramp

primary

#1F27A0

secondary

#C3BC58

accent

#E03DEA

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1F27A0

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

Preview Lab → · Contrast checker → · Palette generator →