#005661
Closest named color: Deep Teal (#00555A). oklch(41.5% 0.072 209.7), rgb(0, 86, 97).
Aa
White text reads best on this color (8.38:1).
About this color
#005661 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.072 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.012 away. White text reads best on it, at 8.38:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #005661 |
| RGB | rgb(0, 86, 97) |
| HSL | hsl(187, 100%, 19%) |
| OKLCH | oklch(41.5% 0.072 209.7) |
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 #005661 | 8.38:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #005661 | 2.50:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #005661 text on white | 8.38:1 | AAA | Lc 88.4 | Fine for body text |
| #005661 text on black | 2.50:1 | Fails | Lc -13.8 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C9CF
oklch(81% 0.042 207.8)
-
Step 400
400
#6DACB8
oklch(70.6% 0.067 210.9)
-
Step 500
500
#4098A6
oklch(63.2% 0.086 209.5)
-
Step 600
600
#0F8291
oklch(55.7% 0.093 209.4)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800 (this color)
#005661
oklch(41.5% 0.072 209.7)
-
Step 900
900
#144A52
oklch(37.8% 0.056 209.2)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#005661 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) | #4D5262 | 0.068 |
| Deuteranopia (no green cones) | #414A61 | 0.061 |
| Tritanopia (no blue cones) | #005B59 | 0.025 |
| Achromatopsia (no color) | #4D4D4D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005661
#005661
oklch(41.5% 0.072 209.7)
- #6E3C34
#6E3C34
oklch(41.6% 0.072 30.1)
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 #005661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.012
- Petrol #005F6A ΔE 0.030
- Dark Teal #014D4E ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Blue Green #005249 ΔE 0.040
- Charcoal #264653 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.054
Use #005661 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.