#40BA90
Closest named color: Greeny Blue (#42B395). oklch(71% 0.125 166.3), rgb(64, 186, 144).
Aa
Black text reads best on this color (8.64:1).
About this color
#40BA90 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.125 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.024 away. Black text reads best on it, at 8.64:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.64:1 |
| White text | 2.42:1 |
Values
| HEX | #40BA90 |
| RGB | rgb(64, 186, 144) |
| HSL | hsl(159, 49%, 49%) |
| OKLCH | oklch(71% 0.125 166.3) |
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 #40BA90 | 2.42:1 | Fails | Lc -52.5 | Large or bold text, headings |
| Black text on #40BA90 | 8.64:1 | AAA | Lc 56.5 | Large or bold text, headings |
| #40BA90 text on white | 2.42:1 | Fails | Lc 47.5 | Large or bold text, headings |
| #40BA90 text on black | 8.64:1 | AAA | Lc -54.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DDEFE6
oklch(93.6% 0.022 164.5)
-
Step 200
200
#BFE3D3
oklch(88.5% 0.044 166.7)
-
Step 300
300
#8FD1B5
oklch(80.8% 0.078 166.1)
-
Step 400
400 (this color)
#40BA90
oklch(71% 0.125 166.3)
-
Step 500
500
#00A277
oklch(63.2% 0.131 166)
-
Step 600
600
#008864
oklch(55.6% 0.115 166.4)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#40BA90 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) | #B6AD8E | 0.125 |
| Deuteranopia (no green cones) | #A5A193 | 0.120 |
| Tritanopia (no blue cones) | #00BBAE | 0.043 |
| Achromatopsia (no color) | #A6A6A6 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40BA90
#40BA90
oklch(71% 0.125 166.3)
- #D980B2
#D980B2
oklch(71% 0.125 346)
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 #40BA90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.024
- Green Blue #01C08D ΔE 0.025
- Greenblue #23C48B ΔE 0.033
- Dark Seafoam #1FB57A ΔE 0.037
- Bluey Green #2BB179 ΔE 0.040
- Dark Seafoam Green #3EAF76 ΔE 0.041
- Medium Sea Green #3CB371 ΔE 0.042
- Green Teal #0CB577 ΔE 0.043
Use #40BA90 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.