#045143
Closest named color: Dark Blue Green (#005249). oklch(38.9% 0.071 175.6), rgb(4, 81, 67).
Aa
White text reads best on this color (9.27:1).
About this color
#045143 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 39%, its chroma 0.071 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.009 away. White text reads best on it, at 9.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #045143 |
| RGB | rgb(4, 81, 67) |
| HSL | hsl(169, 91%, 17%) |
| OKLCH | oklch(38.9% 0.071 175.6) |
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 #045143 | 9.27:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #045143 | 2.26:1 | Fails | Lc 13.0 | Not readable |
| #045143 text on white | 9.27:1 | AAA | Lc 91.0 | Preferred for body text |
| #045143 text on black | 2.26:1 | Fails | Lc -11.4 | 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 900.
-
Step 50
50
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDE9
oklch(93.5% 0.015 175.7)
-
Step 200
200
#C6E0D8
oklch(88.5% 0.03 175.2)
-
Step 300
300
#9DCCBF
oklch(80.8% 0.053 176.1)
-
Step 400
400
#61B29E
oklch(70.6% 0.086 175.8)
-
Step 500
500
#249F86
oklch(63.2% 0.11 175.2)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900 (this color)
#045143
oklch(38.9% 0.071 175.6)
-
Step 950
950
#072E25
oklch(27.2% 0.046 173.9)
#045143 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) | #4E4B42 | 0.075 |
| Deuteranopia (no green cones) | #444444 | 0.071 |
| Tritanopia (no blue cones) | #00524D | 0.016 |
| Achromatopsia (no color) | #474747 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045143
#045143
oklch(38.9% 0.071 175.6)
- #623446
#623446
oklch(38.9% 0.07 356)
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 #045143, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.009
- Dark Teal #014D4E ΔE 0.027
- Deep Teal #00555A ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.041
- Evergreen #05472A ΔE 0.045
- Spruce #0A5F38 ΔE 0.056
- Pine Green #0A481E ΔE 0.056
- Charcoal #264653 ΔE 0.057
Use #045143 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.