#1D5DA1#1D5DA1

#1D5DA1 is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.5% C 0.127 H 253.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#1D5DA1
RGB	rgb(29, 93, 161)
HSL	hsl(211, 69%, 37%)
HSV	hsv(211, 82%, 63%)
CMYK	cmyk(82%, 42.2%, 0%, 36.9%)
CIE-LAB	lab(39.00, 5.47, -42.42)
CIE-LCH	lch(39.00, 42.78, 277.35°)
OKLab	oklab(47.53% -0.0364 -0.1214)
OKLCH	oklch(47.53% 0.127 253.3)
XYZ	xyz(10.8516, 10.6618, 35.1973)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5DA1 #A1611D

analogous

#1D9FA1 #1D5DA1 #1F1DA1

triadic

#1D5DA1 #A11D5D #5DA11D

tetradic

#1D5DA1 #A11D9F #A1611D #1DA11F

square

#1D5DA1 #A11D9F #A1611D #1DA11F

split-complementary

#1D5DA1 #A11F1D #9FA11D

monochromatic

#0A2139 #143F6D #1D5DA1 #267BD5 #589AE1

Accessibility & contrast

On white

6.70

#1D5DA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#1D5DA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5DA1

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5DA1	#FFFFFF	#000000	##FFFFFF
##1D5DA1	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B62A4

Deuteranopia (green-blind)

#2456A0

Tritanopia (blue-blind)

#006D77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1d5da1;
/* rgb */ color: rgb(29, 93, 161);
/* oklch */ color: oklch(47.5% 0.127 253.3);

Tailwind

colors: {
  custom: {
    50: '#6f8abd',
    500: '#1d5da1',
    950: '#000000',
  },
}

SCSS

$custom: #1d5da1;
$custom-light: #6f8abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5da1",
  "rgb": {
    "r": 29,
    "g": 93,
    "b": 161
  },
  "hsl": {
    "h": 210.909,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.47525,
    "c": 0.12676,
    "h": 253.3
  },
  "luminance": 0.10663
}

Semantic roles & 50–950 ramp

primary

#1D5DA1

secondary

#C48F55

accent

#973CEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1D5DA1

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

Preview Lab → · Contrast checker → · Palette generator →