#19403F
Closest named color: Midnight Green (#073B4C). oklch(34.3% 0.044 193), rgb(25, 64, 63).
Aa
White text reads best on this color (11.37:1).
About this color
#19403F is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.044 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.035 away. White text reads best on it, at 11.37:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.84:1 |
| White text | 11.37:1 |
Values
| HEX | #19403F |
| RGB | rgb(25, 64, 63) |
| HSL | hsl(178, 44%, 17%) |
| OKLCH | oklch(34.3% 0.044 193) |
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 #19403F | 11.37:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #19403F | 1.84:1 | Fails | Lc 7.8 | Not readable |
| #19403F text on white | 11.37:1 | AAA | Lc 96.1 | Preferred for body text |
| #19403F 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDC
oklch(88.4% 0.018 192.6)
-
Step 300
300
#A9C8C6
oklch(80.9% 0.033 191.7)
-
Step 400
400
#7AABAA
oklch(70.6% 0.052 194.4)
-
Step 500
500
#559795
oklch(63.2% 0.068 193)
-
Step 600
600
#37817F
oklch(55.6% 0.073 192.8)
-
Step 700
700
#286D6B
oklch(49.1% 0.068 192.5)
-
Step 800
800
#235957
oklch(42.7% 0.057 191.9)
-
Step 900
900 (this color)
#19403F
oklch(34.3% 0.044 193)
-
Step 950
950
#152B2A
oklch(27% 0.028 191.9)
#19403F 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) | #3C3D3F | 0.046 |
| Deuteranopia (no green cones) | #36383F | 0.044 |
| Tritanopia (no blue cones) | #004240 | 0.015 |
| Achromatopsia (no color) | #3A3A3A | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19403F
#19403F
oklch(34.3% 0.044 193)
- #4D2F32
#4D2F32
oklch(34.3% 0.044 13.1)
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 #19403F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.035
- Onyx #343A40 ΔE 0.038
- Charcoal #264653 ΔE 0.041
- Dark Teal #014D4E ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.047
- Gunmetal #293241 ΔE 0.051
- Evergreen #05472A ΔE 0.051
Use #19403F 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.