#184243
Closest named color: Charcoal (#264653). oklch(35% 0.046 197.4), rgb(24, 66, 67).
Aa
White text reads best on this color (11.05:1).
About this color
#184243 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.046 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.034 away. White text reads best on it, at 11.05:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #184243 |
| RGB | rgb(24, 66, 67) |
| HSL | hsl(181, 47%, 18%) |
| OKLCH | oklch(35% 0.046 197.4) |
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 #184243 | 11.05:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #184243 | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #184243 text on white | 11.05:1 | AAA | Lc 95.4 | Preferred for body text |
| #184243 text on black | 1.89:1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A8C8C8
oklch(80.9% 0.034 196.5)
-
Step 400
400
#77ACAD
oklch(70.8% 0.056 197.5)
-
Step 500
500
#519798
oklch(63.1% 0.071 196.7)
-
Step 600
600
#308183
oklch(55.5% 0.077 197.5)
-
Step 700
700
#226D6F
oklch(49.1% 0.072 197.6)
-
Step 800
800
#1F595A
oklch(42.7% 0.059 196.8)
-
Step 900
900 (this color)
#184243
oklch(35% 0.046 197.4)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#184243 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) | #3D3F43 | 0.047 |
| Deuteranopia (no green cones) | #363A43 | 0.043 |
| Tritanopia (no blue cones) | #004442 | 0.015 |
| Achromatopsia (no color) | #3C3C3C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #184243
#184243
oklch(35% 0.046 197.4)
- #503132
#503132
oklch(35.1% 0.045 17.5)
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 #184243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.035
- Dark Teal #014D4E ΔE 0.036
- Onyx #343A40 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Dark Blue Green #005249 ΔE 0.052
Use #184243 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.