#005B54
Closest named color: Deep Teal (#00555A). oklch(42.4% 0.074 185.8), rgb(0, 91, 84).
Aa
White text reads best on this color (8.00:1).
About this color
#005B54 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.074 and its hue 186°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.025 away. White text reads best on it, at 8.00:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #005B54 |
| RGB | rgb(0, 91, 84) |
| HSL | hsl(175, 100%, 18%) |
| OKLCH | oklch(42.4% 0.074 185.8) |
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 #005B54 | 8.00:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #005B54 | 2.62:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #005B54 text on white | 8.00:1 | AAA | Lc 87.2 | Fine for body text |
| #005B54 text on black | 2.62:1 | Fails | Lc -14.9 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDB
oklch(88.5% 0.025 184.2)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6CAFA7
oklch(70.7% 0.069 186.1)
-
Step 500
500
#3D9B91
oklch(63.1% 0.089 185.5)
-
Step 600
600
#05857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007068
oklch(49.1% 0.086 186.2)
-
Step 800
800 (this color)
#005B54
oklch(42.4% 0.074 185.8)
-
Step 900
900
#134B46
oklch(37.6% 0.057 186.5)
-
Step 950
950
#0E2C29
oklch(26.9% 0.036 186.4)
#005B54 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) | #565554 | 0.080 |
| Deuteranopia (no green cones) | #4B4D55 | 0.075 |
| Tritanopia (no blue cones) | #005D59 | 0.009 |
| Achromatopsia (no color) | #505050 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B54
#005B54
oklch(42.4% 0.074 185.8)
- #703C48
#703C48
oklch(42.4% 0.074 5.9)
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 #005B54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.025
- Dark Blue Green #005249 ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.031
- Petrol #005F6A ΔE 0.036
- Dark Slate Gray #2F4F4F ΔE 0.043
- Dark Teal #014D4E ΔE 0.046
- Spruce #0A5F38 ΔE 0.050
- Dark Aqua #05696B ΔE 0.052
Use #005B54 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.