#190603
Closest named color: Very Dark Brown (#1D0200). oklch(15.5% 0.037 35.1), rgb(25, 6, 3).
Aa
White text reads best on this color (19.65:1).
About this color
#190603 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.037 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.018 away. White text reads best on it, at 19.65:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.65:1 |
Values
| HEX | #190603 |
| RGB | rgb(25, 6, 3) |
| HSL | hsl(8, 79%, 5%) |
| OKLCH | oklch(15.5% 0.037 35.1) |
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 #190603 | 19.65:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #190603 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #190603 text on white | 19.65:1 | AAA | Lc 105.6 | Preferred for body text |
| #190603 text on black | 1.06:1 | 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 950.
-
Step 50
50
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E9D4CE
oklch(88.5% 0.025 36.5)
-
Step 300
300
#DBB7AE
oklch(80.8% 0.044 34.3)
-
Step 400
400
#C89183
oklch(70.6% 0.07 34.8)
-
Step 500
500
#B97664
oklch(63.2% 0.089 35.8)
-
Step 600
600
#A45D4B
oklch(55.6% 0.097 35.1)
-
Step 700
700
#8C4D3C
oklch(49.2% 0.09 36)
-
Step 800
800
#723F32
oklch(42.7% 0.075 35.2)
-
Step 900
900
#5C362C
oklch(37.7% 0.058 35.5)
-
Step 950
950 (this color)
#190603
oklch(15.5% 0.037 35.1)
#190603 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) | #0B0903 | 0.036 |
| Deuteranopia (no green cones) | #0F0D03 | 0.034 |
| Tritanopia (no blue cones) | #1C0405 | 0.013 |
| Achromatopsia (no color) | #0B0B0B | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #190603
#190603
oklch(15.5% 0.037 35.1)
- #000F13
#000F13
oklch(15.5% 0.027 213.2)
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 #190603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.018
- Almost Black #070D0D ΔE 0.046
- Rich Navy #001219 ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.090
- Rich Black #0D1B2A ΔE 0.093
- Deep Brown #410200 ΔE 0.101
- Dark Brown #341C02 ΔE 0.103
- Very Dark Purple #2A0134 ΔE 0.112
Use #190603 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.