#21473B
Closest named color: Dark Teal (#014D4E). oklch(36.6% 0.049 170.7), rgb(33, 71, 59).
Aa
White text reads best on this color (10.34:1).
About this color
#21473B is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.049 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.033 away. White text reads best on it, at 10.34:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.02:1 |
| White text | 10.34:1 |
Values
| HEX | #21473B |
| RGB | rgb(33, 71, 59) |
| HSL | hsl(161, 37%, 20%) |
| OKLCH | oklch(36.6% 0.049 170.7) |
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 #21473B | 10.34:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #21473B | 2.02:1 | Fails | Lc 10.0 | Not readable |
| #21473B text on white | 10.34:1 | AAA | Lc 93.9 | Preferred for body text |
| #21473B text on black | 2.02:1 | Fails | Lc -8.6 | Not readable |
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 900.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED7
oklch(88.6% 0.021 169.3)
-
Step 300
300
#AAC9BD
oklch(81% 0.037 170)
-
Step 400
400
#7CAD9B
oklch(70.8% 0.059 169.8)
-
Step 500
500
#589883
oklch(63% 0.074 170.7)
-
Step 600
600
#3A836D
oklch(55.7% 0.081 170.9)
-
Step 700
700
#2C6F5B
oklch(49.3% 0.076 170.6)
-
Step 800
800
#265A4A
oklch(42.7% 0.062 170.5)
-
Step 900
900 (this color)
#21473B
oklch(36.6% 0.049 170.7)
-
Step 950
950
#162B24
oklch(26.9% 0.03 170.6)
#21473B 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) | #45433A | 0.050 |
| Deuteranopia (no green cones) | #3F3E3C | 0.049 |
| Tritanopia (no blue cones) | #134843 | 0.015 |
| Achromatopsia (no color) | #404040 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21473B
#21473B
oklch(36.6% 0.049 170.7)
- #523442
#523442
oklch(36.6% 0.048 350.2)
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 #21473B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.033
- Evergreen #05472A ΔE 0.037
- Dark Blue Green #005249 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.044
- Charcoal #264653 ΔE 0.044
- Onyx #343A40 ΔE 0.052
- Pine Green #0A481E ΔE 0.052
Use #21473B 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.