#045E5E
Closest named color: Petrol (#005F6A). oklch(43.7% 0.073 194.8), rgb(4, 94, 94).
Aa
White text reads best on this color (7.58:1).
About this color
#045E5E is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.073 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.020 away. White text reads best on it, at 7.58:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.76:1 |
| White text | 7.58:1 |
Values
| HEX | #045E5E |
| RGB | rgb(4, 94, 94) |
| HSL | hsl(180, 92%, 19%) |
| OKLCH | oklch(43.7% 0.073 194.8) |
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 #045E5E | 7.58:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #045E5E | 2.76:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #045E5E text on white | 7.58:1 | AAA | Lc 85.9 | Fine for body text |
| #045E5E text on black | 2.76:1 | Fails | Lc -16.2 | Dividers and decoration only |
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
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDE
oklch(88.4% 0.023 196.7)
-
Step 300
300
#A1CAC9
oklch(80.9% 0.043 194.5)
-
Step 400
400
#6BAEAE
oklch(70.6% 0.068 195.7)
-
Step 500
500
#3B9A9A
oklch(63.1% 0.088 195.2)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700
#006F6F
oklch(49% 0.084 194.8)
-
Step 800
800 (this color)
#045E5E
oklch(43.7% 0.073 194.8)
-
Step 900
900
#114B4B
oklch(37.7% 0.057 195)
-
Step 950
950
#0D2C2C
oklch(27% 0.036 195.2)
#045E5E 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) | #57595E | 0.076 |
| Deuteranopia (no green cones) | #4B505F | 0.072 |
| Tritanopia (no blue cones) | #00615E | 0.010 |
| Achromatopsia (no color) | #545454 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045E5E
#045E5E
oklch(43.7% 0.073 194.8)
- #754045
#754045
oklch(43.8% 0.074 14.5)
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 #045E5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.020
- Dark Green Blue #1F6357 ΔE 0.026
- Deep Teal #00555A ΔE 0.029
- Dark Aqua #05696B ΔE 0.037
- Dark Blue Green #005249 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.049
- Dark Teal #014D4E ΔE 0.057
- Spruce #0A5F38 ΔE 0.062
Use #045E5E 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.