#21494B
Closest named color: Dark Teal (#014D4E). oklch(37.7% 0.045 199.8), rgb(33, 73, 75).
Aa
White text reads best on this color (9.90:1).
About this color
#21494B is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.045 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.020 away. White text reads best on it, at 9.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #21494B |
| RGB | rgb(33, 73, 75) |
| HSL | hsl(183, 39%, 21%) |
| OKLCH | oklch(37.7% 0.045 199.8) |
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 #21494B | 9.90:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #21494B | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #21494B text on white | 9.90:1 | AAA | Lc 92.9 | Preferred for body text |
| #21494B text on black | 2.11:1 | Fails | Lc -9.6 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDE
oklch(88.5% 0.018 201.1)
-
Step 300
300
#A8C8C9
oklch(81% 0.034 198.8)
-
Step 400
400
#78ABAE
oklch(70.6% 0.054 200.6)
-
Step 500
500
#52969A
oklch(63% 0.069 200.5)
-
Step 600
600
#338184
oklch(55.7% 0.075 198.7)
-
Step 700
700
#256D70
oklch(49.2% 0.07 199.1)
-
Step 800
800
#21595B
oklch(42.8% 0.058 198.5)
-
Step 900
900 (this color)
#21494B
oklch(37.7% 0.045 199.8)
-
Step 950
950
#142B2C
oklch(27.1% 0.029 199.2)
#21494B 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) | #44464B | 0.046 |
| Deuteranopia (no green cones) | #3D414B | 0.042 |
| Tritanopia (no blue cones) | #054B49 | 0.019 |
| Achromatopsia (no color) | #434343 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21494B
#21494B
oklch(37.7% 0.045 199.8)
- #573838
#573838
oklch(37.7% 0.045 19.4)
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 #21494B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.020
- Charcoal #264653 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.034
- Dark Blue Green #005249 ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.039
- Deep Teal #00555A ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #21494B 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.