#559F74
Closest named color: Ocean Green (#3D9973). oklch(64.2% 0.099 156.6), rgb(85, 159, 116).
Aa
Black text reads best on this color (6.59:1).
About this color
#559F74 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.099 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.028 away. Black text reads best on it, at 6.59:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.59:1 |
| White text | 3.18:1 |
Values
| HEX | #559F74 |
| RGB | rgb(85, 159, 116) |
| HSL | hsl(145, 30%, 48%) |
| OKLCH | oklch(64.2% 0.099 156.6) |
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 #559F74 | 3.18:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #559F74 | 6.59:1 | AA | Lc 45.2 | Large or bold text, headings |
| #559F74 text on white | 3.18:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #559F74 text on black | 6.59:1 | AA | Lc -42.9 | 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
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD2
oklch(88.6% 0.027 155.9)
-
Step 300
300
#A8CBB4
oklch(81% 0.049 156.3)
-
Step 400
400
#78B08D
oklch(70.8% 0.078 156.4)
-
Step 500
500 (this color)
#559F74
oklch(64.2% 0.099 156.6)
-
Step 600
600
#318659
oklch(55.6% 0.108 156.8)
-
Step 700
700
#237149
oklch(49% 0.099 156.9)
-
Step 800
800
#1F5C3C
oklch(42.6% 0.083 157)
-
Step 900
900
#204C33
oklch(37.8% 0.065 156.4)
-
Step 950
950
#142C1E
oklch(26.9% 0.04 156.7)
#559F74 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) | #9E9571 | 0.091 |
| Deuteranopia (no green cones) | #938D77 | 0.089 |
| Tritanopia (no blue cones) | #439E93 | 0.046 |
| Achromatopsia (no color) | #909090 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559F74
#559F74
oklch(64.2% 0.099 156.6)
- #B375A3
#B375A3
oklch(64.2% 0.099 336.6)
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 #559F74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.028
- Jade #1FA774 ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.040
- Tea #65AB7C ΔE 0.040
- Moss #769958 ΔE 0.043
- Dull Teal #5F9E8F ΔE 0.043
- Muted Green #5FA052 ΔE 0.044
- Algae #54AC68 ΔE 0.046
Use #559F74 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.