#004351
Closest named color: Midnight Green (#073B4C). oklch(35.3% 0.063 217.5), rgb(0, 67, 81).
Aa
White text reads best on this color (10.92:1).
About this color
#004351 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.063 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.026 away. White text reads best on it, at 10.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #004351 |
| RGB | rgb(0, 67, 81) |
| HSL | hsl(190, 100%, 16%) |
| OKLCH | oklch(35.3% 0.063 217.5) |
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 #004351 | 10.92:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #004351 | 1.92:1 | Fails | Lc 9.1 | Not readable |
| #004351 text on white | 10.92:1 | AAA | Lc 94.8 | Preferred for body text |
| #004351 text on black | 1.92:1 | Fails | Lc -7.8 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE5
oklch(88.6% 0.026 218)
-
Step 300
300
#9FC9D5
oklch(81% 0.047 217.1)
-
Step 400
400
#66ACC0
oklch(70.6% 0.076 218.2)
-
Step 500
500
#3397B0
oklch(63% 0.097 218)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900 (this color)
#004351
oklch(35.3% 0.063 217.5)
-
Step 950
950
#0A2B33
oklch(26.9% 0.04 217)
#004351 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) | #3A4152 | 0.054 |
| Deuteranopia (no green cones) | #303A51 | 0.048 |
| Tritanopia (no blue cones) | #004847 | 0.028 |
| Achromatopsia (no color) | #3D3D3D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004351
#004351
oklch(35.3% 0.063 217.5)
- #572F23
#572F23
oklch(35.3% 0.062 37.5)
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 #004351, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.030
- Charcoal #264653 ΔE 0.030
- Dark Teal #014D4E ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.052
- Onyx #343A40 ΔE 0.053
- Dark Blue Green #005249 ΔE 0.058
Use #004351 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.