#51997C
Closest named color: Ocean Green (#3D9973). oklch(62.7% 0.086 165.6), rgb(81, 153, 124).
Aa
Black text reads best on this color (6.19:1).
About this color
#51997C is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.086 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 6.19:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.19:1 |
| White text | 3.38:1 |
Values
| HEX | #51997C |
| RGB | rgb(81, 153, 124) |
| HSL | hsl(156, 31%, 46%) |
| OKLCH | oklch(62.7% 0.086 165.6) |
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 #51997C | 3.38:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #51997C | 6.19:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #51997C text on white | 3.38:1 | AA large text | Lc 61.2 | Content text, not long reading |
| #51997C text on black | 6.19:1 | AA | Lc -40.5 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#A8CABA
oklch(81% 0.043 165.2)
-
Step 400
400
#78AE97
oklch(70.6% 0.066 166.1)
-
Step 500
500 (this color)
#51997C
oklch(62.7% 0.086 165.6)
-
Step 600
600
#328466
oklch(55.5% 0.093 165.8)
-
Step 700
700
#247055
oklch(49.1% 0.086 165.7)
-
Step 800
800
#205B45
oklch(42.6% 0.072 165.3)
-
Step 900
900
#214B3A
oklch(37.7% 0.056 164.8)
-
Step 950
950
#142C22
oklch(27% 0.036 165)
#51997C 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) | #96907B | 0.085 |
| Deuteranopia (no green cones) | #8B887E | 0.082 |
| Tritanopia (no blue cones) | #3A9991 | 0.033 |
| Achromatopsia (no color) | #8B8B8B | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51997C
#51997C
oklch(62.7% 0.086 165.6)
- #AE7394
#AE7394
oklch(62.7% 0.086 345.2)
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 #51997C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Grey Teal #5E9B8A ΔE 0.026
- Persian Green #2A9D8F ΔE 0.032
- Dull Teal #5F9E8F ΔE 0.033
- Sea #3C9992 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.035
- Slate Green #658D6D ΔE 0.036
- Blue Green #0F9B8E ΔE 0.039
Use #51997C 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.