#21696A
Closest named color: Dark Aqua (#05696B). oklch(47.8% 0.069 196.4), rgb(33, 105, 106).
Aa
White text reads best on this color (6.37:1).
About this color
#21696A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.069 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.011 away. White text reads best on it, at 6.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #21696A |
| RGB | rgb(33, 105, 106) |
| HSL | hsl(181, 53%, 27%) |
| OKLCH | oklch(47.8% 0.069 196.4) |
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 #21696A | 6.37:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #21696A | 3.29:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #21696A text on white | 6.37:1 | AA | Lc 81.4 | Fine for body text |
| #21696A text on black | 3.29:1 | AA large text | Lc -20.4 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDD
oklch(88.5% 0.018 196.8)
-
Step 300
300
#A8C8C8
oklch(80.9% 0.034 196.5)
-
Step 400
400
#79ABAC
oklch(70.6% 0.053 197.6)
-
Step 500
500
#539797
oklch(63.2% 0.069 195.5)
-
Step 600
600
#348182
oklch(55.6% 0.075 196.4)
-
Step 700
700 (this color)
#21696A
oklch(47.8% 0.069 196.4)
-
Step 800
800
#215959
oklch(42.7% 0.058 195.2)
-
Step 900
900
#214949
oklch(37.7% 0.045 195.4)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#21696A 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) | #62646A | 0.072 |
| Deuteranopia (no green cones) | #575C6A | 0.067 |
| Tritanopia (no blue cones) | #006D69 | 0.017 |
| Achromatopsia (no color) | #5F5F5F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21696A
#21696A
oklch(47.8% 0.069 196.4)
- #7F4C4F
#7F4C4F
oklch(47.6% 0.069 16.2)
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 #21696A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.011
- Dark Aquamarine #017371 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.032
- Petrol #005F6A ΔE 0.038
- Deep Aqua #08787F ΔE 0.048
- Bluegreen #017A79 ΔE 0.051
- Slate #516572 ΔE 0.053
Use #21696A 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.