#1F507C#1F507C

#1F507C is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.1% C 0.090 H 248.8°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#1F507C
RGB	rgb(31, 80, 124)
HSL	hsl(208, 60%, 30%)
HSV	hsv(208, 75%, 49%)
CMYK	cmyk(75%, 35.5%, 0%, 51.4%)
CIE-LAB	lab(32.88, -0.42, -29.67)
CIE-LCH	lch(32.88, 29.67, 269.20°)
OKLab	oklab(42.05% -0.0327 -0.0842)
OKLCH	oklch(42.05% 0.09 248.8)
XYZ	xyz(7.0705, 7.4831, 20.1366)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F507C #7C4B1F

analogous

#1F7C79 #1F507C #1F217C

triadic

#1F507C #7C1F50 #507C1F

tetradic

#1F507C #791F7C #7C4B1F #217C1F

square

#1F507C #791F7C #7C4B1F #217C1F

split-complementary

#1F507C #7C1F21 #7C791F

monochromatic

#07111A #13304B #1F507C #2B70AD #458ED0

Accessibility & contrast

On white

8.41

#1F507C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1F507C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F507C

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F507C	#FFFFFF	#000000	##FFFFFF
##1F507C	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C527E

Deuteranopia (green-blind)

#2F497B

Tritanopia (blue-blind)

#005A60

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f507c;
/* rgb */ color: rgb(31, 80, 124);
/* oklch */ color: oklch(42.1% 0.090 248.8);

Tailwind

colors: {
  custom: {
    50: '#6880a2',
    500: '#1f507c',
    950: '#000000',
  },
}

SCSS

$custom: #1f507c;
$custom-light: #6880a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f507c",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 124
  },
  "hsl": {
    "h": 208.387,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.42053,
    "c": 0.09037,
    "h": 248.8
  },
  "luminance": 0.07484
}

Semantic roles & 50–950 ramp

primary

#1F507C

secondary

#AF7948

accent

#9045E3

background

#F6F7FA

surface

#EBEEF3

border

#C6C9CD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F507C

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

Preview Lab → · Contrast checker → · Palette generator →