#289B77
Closest named color: Ocean Green (#3D9973). oklch(61.8% 0.114 167.2), rgb(40, 155, 119).
Aa
Black text reads best on this color (6.04:1).
About this color
#289B77 is a medium-dark, moderately saturated green. In OKLCH its lightness is 62%, its chroma 0.114 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.012 away. Black text reads best on it, at 6.04:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #289B77 |
| RGB | rgb(40, 155, 119) |
| HSL | hsl(161, 59%, 38%) |
| OKLCH | oklch(61.8% 0.114 167.2) |
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 #289B77 | 3.47:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #289B77 | 6.04:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #289B77 text on white | 3.47:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #289B77 text on black | 6.04:1 | AA | Lc -39.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EDE7
oklch(93.5% 0.016 166.7)
-
Step 200
200
#C7E0D5
oklch(88.5% 0.03 167.4)
-
Step 300
300
#9ECDB9
oklch(80.9% 0.057 167)
-
Step 400
400
#65B395
oklch(70.8% 0.09 167)
-
Step 500
500 (this color)
#289B77
oklch(61.8% 0.114 167.2)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800
#005E45
oklch(42.8% 0.088 167.1)
-
Step 900
900
#054E39
oklch(37.7% 0.075 166.9)
-
Step 950
950
#092E22
oklch(27.1% 0.047 167.5)
#289B77 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) | #979075 | 0.114 |
| Deuteranopia (no green cones) | #888579 | 0.110 |
| Tritanopia (no blue cones) | #009C91 | 0.037 |
| Achromatopsia (no color) | #8A8A8A | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #289B77
#289B77
oklch(61.8% 0.114 167.2)
- #B76793
#B76793
oklch(61.8% 0.116 346.9)
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 #289B77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.012
- Blue Green #0F9B8E ΔE 0.034
- Viridian #1E9167 ΔE 0.034
- Persian Green #2A9D8F ΔE 0.035
- Jade #1FA774 ΔE 0.038
- Sea #3C9992 ΔE 0.046
- Light Forest Green #4F9153 ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.050
Use #289B77 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.