#277E99#277E99

#277E99 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.4% C 0.090 H 223.0°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#277E99
RGB	rgb(39, 126, 153)
HSL	hsl(194, 59%, 38%)
HSV	hsv(194, 75%, 60%)
CMYK	cmyk(74.5%, 17.6%, 0%, 40%)
CIE-LAB	lab(49.07, -16.14, -21.88)
CIE-LCH	lch(49.07, 27.18, 233.59°)
OKLab	oklab(55.43% -0.0657 -0.0612)
OKLCH	oklch(55.43% 0.09 223)
XYZ	xyz(14.0449, 17.6513, 32.7976)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277E99 #994227

analogous

#27997B #277E99 #274599

triadic

#277E99 #99277E #7E9927

tetradic

#277E99 #7B2799 #994227 #459927

square

#277E99 #7B2799 #994227 #459927

split-complementary

#277E99 #992745 #997B27

monochromatic

#0E2E37 #1B5668 #277E99 #33A6CA #63BCD7

Accessibility & contrast

On white

4.64

#277E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#277E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277E99

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277E99	#FFFFFF	#000000	##FFFFFF
##277E99	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9A

Deuteranopia (green-blind)

#5F7099

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277e99;
/* rgb */ color: rgb(39, 126, 153);
/* oklch */ color: oklch(55.4% 0.090 223.0);

Tailwind

colors: {
  custom: {
    50: '#72a3b7',
    500: '#277e99',
    950: '#000000',
  },
}

SCSS

$custom: #277e99;
$custom-light: #72a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#277e99",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 194.211,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.55433,
    "c": 0.08981,
    "h": 223
  },
  "luminance": 0.17653
}

Semantic roles & 50–950 ramp

primary

#277E99

secondary

#BD755F

accent

#6B45E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277E99

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

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