#023F43
Closest named color: Midnight Green (#073B4C). oklch(33.5% 0.056 202.1), rgb(2, 63, 67).
Aa
White text reads best on this color (11.70:1).
About this color
#023F43 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.056 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.025 away. White text reads best on it, at 11.70:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.70:1 |
Values
| HEX | #023F43 |
| RGB | rgb(2, 63, 67) |
| HSL | hsl(184, 94%, 14%) |
| OKLCH | oklch(33.5% 0.056 202.1) |
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 #023F43 | 11.70:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #023F43 | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #023F43 text on white | 11.70:1 | AAA | Lc 96.5 | Preferred for body text |
| #023F43 text on black | 1.79:1 | 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
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C8DEE0
oklch(88.5% 0.024 203.4)
-
Step 300
300
#A2C9CC
oklch(80.9% 0.042 202.2)
-
Step 400
400
#6CADB2
oklch(70.6% 0.067 202)
-
Step 500
500
#3D99A0
oklch(63.1% 0.086 202.2)
-
Step 600
600
#07838B
oklch(55.6% 0.093 202.5)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#025A60
oklch(42.6% 0.072 202.8)
-
Step 900
900 (this color)
#023F43
oklch(33.5% 0.056 202.1)
-
Step 950
950
#0E2C2E
oklch(27.2% 0.035 201.3)
#023F43 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) | #393C43 | 0.056 |
| Deuteranopia (no green cones) | #313643 | 0.051 |
| Tritanopia (no blue cones) | #004240 | 0.013 |
| Achromatopsia (no color) | #383838 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #023F43
#023F43
oklch(33.5% 0.056 202.1)
- #502A29
#502A29
oklch(33.4% 0.057 22.1)
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 #023F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.033
- Charcoal #264653 ΔE 0.047
- Dark Teal #014D4E ΔE 0.047
- Onyx #343A40 ΔE 0.049
- Gunmetal #293241 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.058
- Evergreen #05472A ΔE 0.058
Use #023F43 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.