#10565A
Closest named color: Deep Teal (#00555A). oklch(41.5% 0.065 200.8), rgb(16, 86, 90).
Aa
White text reads best on this color (8.39:1).
About this color
#10565A is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.007 away. White text reads best on it, at 8.39:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.50:1 |
| White text | 8.39:1 |
Values
| HEX | #10565A |
| RGB | rgb(16, 86, 90) |
| HSL | hsl(183, 70%, 21%) |
| OKLCH | oklch(41.5% 0.065 200.8) |
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 #10565A | 8.39:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #10565A | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #10565A text on white | 8.39:1 | AAA | Lc 88.6 | Fine for body text |
| #10565A text on black | 2.50:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A5C8CB
oklch(80.8% 0.038 202.8)
-
Step 400
400
#72ACB0
oklch(70.6% 0.061 201.4)
-
Step 500
500
#49989D
oklch(63.2% 0.078 200.9)
-
Step 600
600
#238287
oklch(55.6% 0.085 200.3)
-
Step 700
700
#136E73
oklch(49.2% 0.079 200.7)
-
Step 800
800 (this color)
#10565A
oklch(41.5% 0.065 200.8)
-
Step 900
900
#1A4A4D
oklch(37.8% 0.051 200.9)
-
Step 950
950
#112B2D
oklch(27% 0.032 202.1)
#10565A 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) | #4F525A | 0.066 |
| Deuteranopia (no green cones) | #454A5A | 0.062 |
| Tritanopia (no blue cones) | #005A57 | 0.016 |
| Achromatopsia (no color) | #4D4D4D | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10565A
#10565A
oklch(41.5% 0.065 200.8)
- #6B3D3C
#6B3D3C
oklch(41.6% 0.065 21.6)
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 #10565A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.007
- Dark Slate Gray #2F4F4F ΔE 0.030
- Dark Blue Green #005249 ΔE 0.031
- Petrol #005F6A ΔE 0.033
- Dark Teal #014D4E ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.047
- Charcoal #264653 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
Use #10565A 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.