#277E63
Closest named color: Bluegreen (#017A79). oklch(53.4% 0.093 168.4), rgb(39, 126, 99).
Aa
White text reads best on this color (4.94:1).
About this color
#277E63 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.093 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.041 away. White text reads best on it, at 4.94:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.25:1 |
| White text | 4.94:1 |
Values
| HEX | #277E63 |
| RGB | rgb(39, 126, 99) |
| HSL | hsl(161, 53%, 32%) |
| OKLCH | oklch(53.4% 0.093 168.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #277E63 | 4.94:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #277E63 | 4.25:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #277E63 text on white | 4.94:1 | AA | Lc 73.9 | Content text, not long reading |
| #277E63 text on black | 4.25:1 | AA large text | Lc -27.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDED6
oklch(88.4% 0.023 168.7)
-
Step 300
300
#A7CABC
oklch(80.9% 0.042 169)
-
Step 400
400
#77AE99
oklch(70.6% 0.066 168.6)
-
Step 500
500
#509A80
oklch(63.1% 0.085 168.5)
-
Step 600
600 (this color)
#277E63
oklch(53.4% 0.093 168.4)
-
Step 700
700
#207058
oklch(49.1% 0.086 168.9)
-
Step 800
800
#1E5B48
oklch(42.6% 0.07 169)
-
Step 900
900
#1F4B3C
oklch(37.7% 0.056 168.4)
-
Step 950
950
#132C23
oklch(27% 0.036 168.1)
#277E63 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7B7562 | 0.094 |
| Deuteranopia (no green cones) | #6F6D65 | 0.090 |
| Tritanopia (no blue cones) | #007F76 | 0.029 |
| Achromatopsia (no color) | #707070 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #277E63
#277E63
oklch(53.4% 0.093 168.4)
- #945676
#945676
oklch(53.4% 0.092 348.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #277E63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.041
- Teal #008080 ΔE 0.043
- Sea Green #2E8B57 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.050
- Deep Turquoise #017374 ΔE 0.053
- Deep Aqua #08787F ΔE 0.054
- Jungle Green #048243 ΔE 0.054
- Dark Sage #598556 ΔE 0.055
Use #277E63 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.