#004145
Closest named color: Midnight Green (#073B4C). oklch(34.2% 0.058 201.7), rgb(0, 65, 69).
Aa
White text reads best on this color (11.40:1).
About this color
#004145 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.058 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.027 away. White text reads best on it, at 11.40:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.84:1 |
| White text | 11.40:1 |
Values
| HEX | #004145 |
| RGB | rgb(0, 65, 69) |
| HSL | hsl(183, 100%, 14%) |
| OKLCH | oklch(34.2% 0.058 201.7) |
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 #004145 | 11.40:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #004145 | 1.84:1 | Fails | Lc 8.0 | Not readable |
| #004145 text on white | 11.40:1 | AAA | Lc 95.8 | Preferred for body text |
| #004145 text on black | 1.84:1 | Fails | Lc 0.0 | 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 900.
-
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
#C8DEE0
oklch(88.5% 0.024 203.4)
-
Step 300
300
#A0CACC
oklch(81% 0.044 199.9)
-
Step 400
400
#69AEB3
oklch(70.7% 0.07 201.6)
-
Step 500
500
#3899A0
oklch(63% 0.089 201.9)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900 (this color)
#004145
oklch(34.2% 0.058 201.7)
-
Step 950
950
#0C2C2E
oklch(27.1% 0.037 201)
#004145 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) | #3B3E45 | 0.058 |
| Deuteranopia (no green cones) | #323745 | 0.054 |
| Tritanopia (no blue cones) | #004442 | 0.013 |
| Achromatopsia (no color) | #3A3A3A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004145
#004145
oklch(34.2% 0.058 201.7)
- #532B2B
#532B2B
oklch(34.2% 0.059 20.6)
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 #004145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.027
- Dark Blue Grey #1F3B4D ΔE 0.035
- Dark Teal #014D4E ΔE 0.040
- Charcoal #264653 ΔE 0.042
- Onyx #343A40 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
- Gunmetal #293241 ΔE 0.056
- Evergreen #05472A ΔE 0.056
Use #004145 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.