#21876F
Closest named color: Viridian (#1E9167). oklch(56.1% 0.098 172.9), rgb(33, 135, 111).
Aa
Black text reads best on this color (4.75:1).
About this color
#21876F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.098 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Viridian (#1E9167), ΔE 0.037 away. Black text reads best on it, at 4.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Viridian (#1E9167) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #21876F |
| RGB | rgb(33, 135, 111) |
| HSL | hsl(166, 61%, 33%) |
| OKLCH | oklch(56.1% 0.098 172.9) |
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 #21876F | 4.41:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #21876F | 4.75:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #21876F text on white | 4.41:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #21876F text on black | 4.75:1 | AA | Lc -31.4 | 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 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CADFD7
oklch(88.6% 0.025 170.9)
-
Step 300
300
#A4CABE
oklch(80.8% 0.044 174)
-
Step 400
400
#71AF9C
oklch(70.6% 0.07 172.9)
-
Step 500
500
#469B84
oklch(63% 0.09 173)
-
Step 600
600 (this color)
#21876F
oklch(56.1% 0.098 172.9)
-
Step 700
700
#0D715C
oklch(49.1% 0.091 173.3)
-
Step 800
800
#125C4B
oklch(42.7% 0.075 173.2)
-
Step 900
900
#194C3E
oklch(37.8% 0.06 171.8)
-
Step 950
950
#102C25
oklch(26.9% 0.037 174.8)
#21876F 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) | #827E6E | 0.101 |
| Deuteranopia (no green cones) | #757471 | 0.097 |
| Tritanopia (no blue cones) | #008880 | 0.025 |
| Achromatopsia (no color) | #787878 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21876F
#21876F
oklch(56.1% 0.098 172.9)
- #A05B7A
#A05B7A
oklch(56% 0.098 352.3)
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 #21876F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Viridian #1E9167 ΔE 0.037
- Teal #008080 ΔE 0.040
- Sea Green #2E8B57 ΔE 0.040
- Dark Cyan #008B8B ΔE 0.040
- Bluegreen #017A79 ΔE 0.050
- Dark Sage #598556 ΔE 0.050
- Dusty Teal #4C9085 ΔE 0.054
- Teal Green #0A9396 ΔE 0.059
Use #21876F 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.