#1F507A#1F507A

#1F507A is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.9% C 0.088 H 247.7°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#1F507A
RGB	rgb(31, 80, 122)
HSL	hsl(208, 59%, 30%)
HSV	hsv(208, 75%, 48%)
CMYK	cmyk(74.6%, 34.4%, 0%, 52.2%)
CIE-LAB	lab(32.77, -1.19, -28.60)
CIE-LCH	lch(32.77, 28.62, 267.61°)
OKLab	oklab(41.93% -0.0333 -0.0811)
OKLCH	oklch(41.93% 0.088 247.7)
XYZ	xyz(6.9453, 7.4330, 19.4773)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F507A #7A491F

analogous

#1F7A76 #1F507A #1F237A

triadic

#1F507A #7A1F50 #507A1F

tetradic

#1F507A #761F7A #7A491F #237A1F

square

#1F507A #761F7A #7A491F #237A1F

split-complementary

#1F507A #7A1F23 #7A761F

monochromatic

#061018 #133049 #1F507A #2B70AB #448FCF

Accessibility & contrast

On white

8.44

#1F507A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1F507A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F507A

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F507A	#FFFFFF	#000000	##FFFFFF
##1F507A	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D527C

Deuteranopia (green-blind)

#304979

Tritanopia (blue-blind)

#005A5F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f507a;
/* rgb */ color: rgb(31, 80, 122);
/* oklch */ color: oklch(41.9% 0.088 247.7);

Tailwind

colors: {
  custom: {
    50: '#6780a0',
    500: '#1f507a',
    950: '#000000',
  },
}

SCSS

$custom: #1f507a;
$custom-light: #6780a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f507a",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 122
  },
  "hsl": {
    "h": 207.692,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.41932,
    "c": 0.0877,
    "h": 247.7
  },
  "luminance": 0.07434
}

Semantic roles & 50–950 ramp

primary

#1F507A

secondary

#AD7647

accent

#8E45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1F507A

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

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