#1F508D#1F508D

#1F508D is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.2% C 0.114 H 255.6°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F508D
RGB	rgb(31, 80, 141)
HSL	hsl(213, 64%, 34%)
HSV	hsv(213, 78%, 55%)
CMYK	cmyk(78%, 43.3%, 0%, 44.7%)
CIE-LAB	lab(33.88, 6.29, -38.55)
CIE-LCH	lch(33.88, 39.06, 279.27°)
OKLab	oklab(43.16% -0.0282 -0.1103)
OKLCH	oklch(43.16% 0.114 255.6)
XYZ	xyz(8.2397, 7.9508, 26.2945)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F508D #8D5C1F

analogous

#1F878D #1F508D #251F8D

triadic

#1F508D #8D1F50 #508D1F

tetradic

#1F508D #8D1F87 #8D5C1F #1F8D25

square

#1F508D #8D1F87 #8D5C1F #1F8D25

split-complementary

#1F508D #8D251F #878D1F

monochromatic

#091729 #14345B #1F508D #2A6CBF #4E8CD8

Accessibility & contrast

On white

8.11

#1F508D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1F508D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F508D

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F508D	#FFFFFF	#000000	##FFFFFF
##1F508D	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32558F

Deuteranopia (green-blind)

#1F4B8C

Tritanopia (blue-blind)

#005E67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f508d;
/* rgb */ color: rgb(31, 80, 141);
/* oklch */ color: oklch(43.2% 0.114 255.6);

Tailwind

colors: {
  custom: {
    50: '#6b80af',
    500: '#1f508d',
    950: '#000000',
  },
}

SCSS

$custom: #1f508d;
$custom-light: #6b80af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f508d",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 141
  },
  "hsl": {
    "h": 213.273,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.43158,
    "c": 0.11382,
    "h": 255.6
  },
  "luminance": 0.07952
}

Semantic roles & 50–950 ramp

primary

#1F508D

secondary

#BB8A4D

accent

#9D41E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1F508D

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

Preview Lab → · Contrast checker → · Palette generator →