#277553
Closest named color: Dark Aquamarine (#017371). oklch(50.5% 0.094 161.1), rgb(39, 117, 83).
Aa
White text reads best on this color (5.59:1).
About this color
#277553 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.094 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.050 away. White text reads best on it, at 5.59:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #277553 |
| RGB | rgb(39, 117, 83) |
| HSL | hsl(154, 50%, 31%) |
| OKLCH | oklch(50.5% 0.094 161.1) |
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 #277553 | 5.59:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #277553 | 3.75:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #277553 text on white | 5.59:1 | AA | Lc 77.7 | Fine for body text |
| #277553 text on black | 3.75:1 | AA large text | Lc -24.1 | 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 700.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CBDFD4
oklch(88.6% 0.026 161.9)
-
Step 300
300
#A8CAB7
oklch(80.9% 0.045 160.7)
-
Step 400
400
#77AF92
oklch(70.7% 0.073 161.2)
-
Step 500
500
#519B77
oklch(63.1% 0.093 160.9)
-
Step 600
600
#318560
oklch(55.5% 0.1 161.3)
-
Step 700
700 (this color)
#277553
oklch(50.5% 0.094 161.1)
-
Step 800
800
#1F5C41
oklch(42.7% 0.078 161.1)
-
Step 900
900
#204B37
oklch(37.6% 0.06 161.4)
-
Step 950
950
#142C20
oklch(26.9% 0.038 160.6)
#277553 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) | #736C51 | 0.089 |
| Deuteranopia (no green cones) | #696555 | 0.087 |
| Tritanopia (no blue cones) | #00756C | 0.039 |
| Achromatopsia (no color) | #686868 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #277553
#277553
oklch(50.5% 0.094 161.1)
- #884E74
#884E74
oklch(50.4% 0.093 341.3)
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 #277553, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.050
- Jungle Green #048243 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.054
- Bluegreen #017A79 ΔE 0.055
- Dark Olive Green #556B2F ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.062
- Dark Moss Green #606C38 ΔE 0.062
- Dark Aqua #05696B ΔE 0.064
Use #277553 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.