#1D518B#1D518B

#1D518B is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.2% C 0.111 H 253.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#1D518B
RGB	rgb(29, 81, 139)
HSL	hsl(212, 65%, 33%)
HSV	hsv(212, 79%, 55%)
CMYK	cmyk(79.1%, 41.7%, 0%, 45.5%)
CIE-LAB	lab(34.00, 4.57, -37.13)
CIE-LCH	lch(34.00, 37.41, 277.02°)
OKLab	oklab(43.2% -0.0309 -0.1061)
OKLCH	oklch(43.2% 0.111 253.8)
XYZ	xyz(8.1076, 8.0092, 25.5397)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D518B #8B571D

analogous

#1D888B #1D518B #201D8B

triadic

#1D518B #8B1D51 #518B1D

tetradic

#1D518B #8B1D88 #8B571D #1D8B20

square

#1D518B #8B1D88 #8B571D #1D8B20

split-complementary

#1D518B #8B201D #888B1D

monochromatic

#081626 #123358 #1D518B #286FBE #498DD9

Accessibility & contrast

On white

8.07

#1D518B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1D518B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D518B

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D518B	#FFFFFF	#000000	##FFFFFF
##1D518B	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)

#35558D

Deuteranopia (green-blind)

#234B8A

Tritanopia (blue-blind)

#005F67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d518b;
/* rgb */ color: rgb(29, 81, 139);
/* oklch */ color: oklch(43.2% 0.111 253.8);

Tailwind

colors: {
  custom: {
    50: '#6a81ad',
    500: '#1d518b',
    950: '#000000',
  },
}

SCSS

$custom: #1d518b;
$custom-light: #6a81ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d518b",
  "rgb": {
    "r": 29,
    "g": 81,
    "b": 139
  },
  "hsl": {
    "h": 211.636,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.43195,
    "c": 0.11052,
    "h": 253.8
  },
  "luminance": 0.0801
}

Semantic roles & 50–950 ramp

primary

#1D518B

secondary

#BB8549

accent

#993FE8

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1D518B

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

Preview Lab → · Contrast checker → · Palette generator →