#045F62
Closest named color: Petrol (#005F6A). oklch(44.1% 0.074 198.6), rgb(4, 95, 98).
Aa
White text reads best on this color (7.45:1).
About this color
#045F62 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.074 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.013 away. White text reads best on it, at 7.45:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #045F62 |
| RGB | rgb(4, 95, 98) |
| HSL | hsl(182, 92%, 20%) |
| OKLCH | oklch(44.1% 0.074 198.6) |
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 #045F62 | 7.45:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #045F62 | 2.81:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #045F62 text on white | 7.45:1 | AAA | Lc 85.4 | Fine for body text |
| #045F62 text on black | 2.81:1 | Fails | Lc -16.6 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1EDED
oklch(93.7% 0.013 196.9)
-
Step 200
200
#C8DEDF
oklch(88.5% 0.024 200.1)
-
Step 300
300
#A1CACB
oklch(81% 0.043 198.2)
-
Step 400
400
#6AAEB1
oklch(70.7% 0.069 199.3)
-
Step 500
500
#3A9A9D
oklch(63.2% 0.088 198.1)
-
Step 600
600
#008488
oklch(55.7% 0.095 198.5)
-
Step 700
700
#006F72
oklch(49.2% 0.084 198.1)
-
Step 800
800 (this color)
#045F62
oklch(44.1% 0.074 198.6)
-
Step 900
900
#104B4D
oklch(37.8% 0.058 198.4)
-
Step 950
950
#0C2C2D
oklch(27% 0.037 198.1)
#045F62 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) | #575A62 | 0.075 |
| Deuteranopia (no green cones) | #4B5162 | 0.070 |
| Tritanopia (no blue cones) | #006360 | 0.014 |
| Achromatopsia (no color) | #555555 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045F62
#045F62
oklch(44.1% 0.074 198.6)
- #764143
#764143
oklch(44% 0.074 18.1)
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 #045F62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.013
- Dark Green Blue #1F6357 ΔE 0.028
- Dark Aqua #05696B ΔE 0.032
- Deep Teal #00555A ΔE 0.033
- Dark Blue Green #005249 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Teal #014D4E ΔE 0.061
- Dark Aquamarine #017371 ΔE 0.063
Use #045F62 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.