#1D6366
Closest named color: Dark Aqua (#05696B). oklch(45.9% 0.067 199.2), rgb(29, 99, 102).
Aa
White text reads best on this color (6.93:1).
About this color
#1D6366 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.067 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.019 away. White text reads best on it, at 6.93:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #1D6366 |
| RGB | rgb(29, 99, 102) |
| HSL | hsl(182, 56%, 26%) |
| OKLCH | oklch(45.9% 0.067 199.2) |
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 #1D6366 | 6.93:1 | AA | Lc -88.7 | Fine for body text |
| Black text on #1D6366 | 3.02:1 | AA large text | Lc 20.3 | Dividers and decoration only |
| #1D6366 text on white | 6.93:1 | AA | Lc 83.7 | Fine for body text |
| #1D6366 text on black | 3.02:1 | AA large text | Lc -18.2 | 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 800.
-
Step 50
50
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A4C9CA
oklch(80.9% 0.039 198.4)
-
Step 400
400
#70ADB0
oklch(70.7% 0.063 199.8)
-
Step 500
500
#45989C
oklch(63% 0.08 199.6)
-
Step 600
600
#1C8387
oklch(55.7% 0.088 199)
-
Step 700
700
#096E72
oklch(49% 0.081 199.4)
-
Step 800
800 (this color)
#1D6366
oklch(45.9% 0.067 199.2)
-
Step 900
900
#184A4C
oklch(37.7% 0.053 198.9)
-
Step 950
950
#102B2D
oklch(26.9% 0.033 201.9)
#1D6366 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) | #5C5E66 | 0.070 |
| Deuteranopia (no green cones) | #515666 | 0.065 |
| Tritanopia (no blue cones) | #006764 | 0.017 |
| Achromatopsia (no color) | #5A5A5A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D6366
#1D6366
oklch(45.9% 0.067 199.2)
- #794848
#794848
oklch(45.9% 0.067 20)
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 #1D6366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.019
- Petrol #005F6A ΔE 0.021
- Dark Green Blue #1F6357 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.048
- Deep Teal #00555A ΔE 0.050
- YInMn Blue #415A77 ΔE 0.057
- Slate #516572 ΔE 0.059
Use #1D6366 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.