#145F5C
Closest named color: Dark Green Blue (#1F6357). oklch(44.2% 0.069 190.9), rgb(20, 95, 92).
Aa
White text reads best on this color (7.44:1).
About this color
#145F5C is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.069 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.019 away. White text reads best on it, at 7.44:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.82:1 |
| White text | 7.44:1 |
Values
| HEX | #145F5C |
| RGB | rgb(20, 95, 92) |
| HSL | hsl(178, 65%, 23%) |
| OKLCH | oklch(44.2% 0.069 190.9) |
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 #145F5C | 7.44:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #145F5C | 2.82:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #145F5C text on white | 7.44:1 | AAA | Lc 85.5 | Fine for body text |
| #145F5C text on black | 2.82:1 | Fails | Lc -16.5 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#C9DEDC
oklch(88.4% 0.023 189.8)
-
Step 300
300
#A3C9C7
oklch(80.8% 0.04 192.4)
-
Step 400
400
#6FAEAA
oklch(70.7% 0.065 190.7)
-
Step 500
500
#439A95
oklch(63.2% 0.084 190.1)
-
Step 600
600
#188480
oklch(55.6% 0.09 191)
-
Step 700
700
#03706C
oklch(49.2% 0.084 190.4)
-
Step 800
800 (this color)
#145F5C
oklch(44.2% 0.069 190.9)
-
Step 900
900
#174B48
oklch(37.8% 0.054 189.7)
-
Step 950
950
#0F2C2A
oklch(27% 0.035 189.2)
#145F5C 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) | #595A5C | 0.073 |
| Deuteranopia (no green cones) | #4E525D | 0.068 |
| Tritanopia (no blue cones) | #00625E | 0.010 |
| Achromatopsia (no color) | #555555 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #145F5C
#145F5C
oklch(44.2% 0.069 190.9)
- #744249
#744249
oklch(44.1% 0.07 11.3)
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 #145F5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.019
- Petrol #005F6A ΔE 0.024
- Dark Aqua #05696B ΔE 0.034
- Deep Teal #00555A ΔE 0.035
- Dark Blue Green #005249 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.050
- Spruce #0A5F38 ΔE 0.059
- Pine #2B5D34 ΔE 0.060
Use #145F5C 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.