#277BA5#277BA5

#277BA5 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.102 H 235.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#277BA5
RGB	rgb(39, 123, 165)
HSL	hsl(200, 62%, 40%)
HSV	hsv(200, 76%, 65%)
CMYK	cmyk(76.4%, 25.5%, 0%, 35.3%)
CIE-LAB	lab(48.65, -10.23, -29.54)
CIE-LCH	lch(48.65, 31.26, 250.90°)
OKLab	oklab(55.27% -0.0582 -0.0833)
OKLCH	oklch(55.27% 0.102 235.1)
XYZ	xyz(14.7085, 17.3121, 38.1564)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277BA5 #A55127

analogous

#27A590 #277BA5 #273CA5

triadic

#277BA5 #A5277B #7BA527

tetradic

#277BA5 #9027A5 #A55127 #3CA527

square

#277BA5 #9027A5 #A55127 #3CA527

split-complementary

#277BA5 #A5273C #A59027

monochromatic

#103142 #1B5674 #277BA5 #399ED0 #6AB6DC

Accessibility & contrast

On white

4.71

#277BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#277BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277BA5

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277BA5	#FFFFFF	#000000	##FFFFFF
##277BA5	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA7

Deuteranopia (green-blind)

#566EA4

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277ba5;
/* rgb */ color: rgb(39, 123, 165);
/* oklch */ color: oklch(55.3% 0.102 235.1);

Tailwind

colors: {
  custom: {
    50: '#74a1c0',
    500: '#277ba5',
    950: '#000000',
  },
}

SCSS

$custom: #277ba5;
$custom-light: #74a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#277ba5",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 165
  },
  "hsl": {
    "h": 200,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.55268,
    "c": 0.10156,
    "h": 235.1
  },
  "luminance": 0.17314
}

Semantic roles & 50–950 ramp

primary

#277BA5

secondary

#C28466

accent

#7943E5

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277BA5

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

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