#05545F
Closest named color: Deep Teal (#00555A). oklch(40.9% 0.069 210.3), rgb(5, 84, 95).
Aa
White text reads best on this color (8.60:1).
About this color
#05545F is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.069 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.010 away. White text reads best on it, at 8.60:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.43:1 |
| White text | 8.60:1 |
Values
| HEX | #05545F |
| RGB | rgb(5, 84, 95) |
| HSL | hsl(187, 90%, 20%) |
| OKLCH | oklch(40.9% 0.069 210.3) |
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 #05545F | 8.60:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #05545F | 2.43:1 | Fails | Lc 14.9 | Not readable |
| #05545F text on white | 8.60:1 | AAA | Lc 89.1 | Fine for body text |
| #05545F text on black | 2.43:1 | Fails | Lc -13.1 | 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
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DDE1
oklch(88.4% 0.022 211)
-
Step 300
300
#A3C8CF
oklch(80.8% 0.041 210.4)
-
Step 400
400
#6FACB7
oklch(70.7% 0.065 210.1)
-
Step 500
500
#4497A5
oklch(63.1% 0.082 210.1)
-
Step 600
600
#1B8191
oklch(55.6% 0.09 211)
-
Step 700
700
#066D7B
oklch(49.1% 0.084 210.4)
-
Step 800
800 (this color)
#05545F
oklch(40.9% 0.069 210.3)
-
Step 900
900
#174951
oklch(37.6% 0.054 209.9)
-
Step 950
950
#102B30
oklch(27% 0.034 211.3)
#05545F 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) | #4B5060 | 0.065 |
| Deuteranopia (no green cones) | #40485F | 0.060 |
| Tritanopia (no blue cones) | #005957 | 0.025 |
| Achromatopsia (no color) | #4C4C4C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05545F
#05545F
oklch(40.9% 0.069 210.3)
- #6B3B33
#6B3B33
oklch(41% 0.07 30.4)
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 #05545F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.010
- Dark Teal #014D4E ΔE 0.033
- Dark Slate Gray #2F4F4F ΔE 0.035
- Petrol #005F6A ΔE 0.036
- Dark Blue Green #005249 ΔE 0.037
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.058
Use #05545F 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.