#04545C
Closest named color: Deep Teal (#00555A). oklch(40.8% 0.068 206.2), rgb(4, 84, 92).
Aa
White text reads best on this color (8.64:1).
About this color
#04545C is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.068 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.006 away. White text reads best on it, at 8.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.42:1 |
| White text | 8.64:1 |
Values
| HEX | #04545C |
| RGB | rgb(4, 84, 92) |
| HSL | hsl(185, 92%, 19%) |
| OKLCH | oklch(40.8% 0.068 206.2) |
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 #04545C | 8.64:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #04545C | 2.42:1 | Fails | Lc 14.7 | Not readable |
| #04545C text on white | 8.64:1 | AAA | Lc 89.2 | Fine for body text |
| #04545C text on black | 2.42:1 | Fails | Lc -13.0 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C8CD
oklch(80.8% 0.04 206.5)
-
Step 400
400
#6FACB4
oklch(70.6% 0.064 206.3)
-
Step 500
500
#4498A2
oklch(63.2% 0.082 205.9)
-
Step 600
600
#1A828D
oklch(55.7% 0.089 206)
-
Step 700
700
#066E78
oklch(49.2% 0.083 206)
-
Step 800
800 (this color)
#04545C
oklch(40.8% 0.068 206.2)
-
Step 900
900
#174A50
oklch(37.8% 0.054 206.1)
-
Step 950
950
#102B2F
oklch(27% 0.033 208.2)
#04545C 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) | #4C505D | 0.067 |
| Deuteranopia (no green cones) | #41485C | 0.062 |
| Tritanopia (no blue cones) | #005856 | 0.019 |
| Achromatopsia (no color) | #4C4C4C | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04545C
#04545C
oklch(40.8% 0.068 206.2)
- #6A3A36
#6A3A36
oklch(40.7% 0.069 25.6)
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 #04545C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.006
- Dark Teal #014D4E ΔE 0.029
- Dark Blue Green #005249 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.032
- Petrol #005F6A ΔE 0.037
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.048
- Dark Green Blue #1F6357 ΔE 0.056
Use #04545C 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.