#1F508F#1F508F

#1F508F is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.3% C 0.117 H 256.2°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F508F
RGB	rgb(31, 80, 143)
HSL	hsl(214, 64%, 34%)
HSV	hsv(214, 78%, 56%)
CMYK	cmyk(78.3%, 44.1%, 0%, 43.9%)
CIE-LAB	lab(34.01, 7.08, -39.57)
CIE-LCH	lch(34.01, 40.20, 280.15°)
OKLab	oklab(43.3% -0.0278 -0.1133)
OKLCH	oklch(43.3% 0.117 256.2)
XYZ	xyz(8.3898, 8.0108, 27.0853)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F508F #8F5E1F

analogous

#1F888F #1F508F #261F8F

triadic

#1F508F #8F1F50 #508F1F

tetradic

#1F508F #8F1F88 #8F5E1F #1F8F26

square

#1F508F #8F1F88 #8F5E1F #1F8F26

split-complementary

#1F508F #8F261F #888F1F

monochromatic

#09182A #14345D #1F508F #2A6CC1 #4F8CD9

Accessibility & contrast

On white

8.07

#1F508F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1F508F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F508F

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F508F	#FFFFFF	#000000	##FFFFFF
##1F508F	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315591

Deuteranopia (green-blind)

#1C4B8E

Tritanopia (blue-blind)

#005F68

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1f508f;
/* rgb */ color: rgb(31, 80, 143);
/* oklch */ color: oklch(43.3% 0.117 256.2);

Tailwind

colors: {
  custom: {
    50: '#6c80b0',
    500: '#1f508f',
    950: '#000000',
  },
}

SCSS

$custom: #1f508f;
$custom-light: #6c80b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f508f",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 143
  },
  "hsl": {
    "h": 213.75,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.43295,
    "c": 0.11662,
    "h": 256.2
  },
  "luminance": 0.08012
}

Semantic roles & 50–950 ramp

primary

#1F508F

secondary

#BC8C4E

accent

#9E40E7

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #1F508F

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

Preview Lab → · Contrast checker → · Palette generator →