#101603
Closest named color: Almost Black (#070D0D). oklch(18.8% 0.038 123.4), rgb(16, 22, 3).
Aa
White text reads best on this color (18.45:1).
About this color
#101603 is a very dark, muted brown. In OKLCH its lightness is 19%, its chroma 0.038 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.051 away. White text reads best on it, at 18.45:1.
| Hue family | Browns |
| Lightness | very dark (19%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.13:1 |
| White text | 18.45:1 |
Values
| HEX | #101603 |
| RGB | rgb(16, 22, 3) |
| HSL | hsl(79, 76%, 5%) |
| OKLCH | oklch(18.8% 0.038 123.4) |
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 #101603 | 18.45:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #101603 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #101603 text on white | 18.45:1 | AAA | Lc 105.0 | Preferred for body text |
| #101603 text on black | 1.13:1 | 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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D6DCCA
oklch(88.5% 0.025 122)
-
Step 300
300
#BBC6A6
oklch(80.9% 0.045 122.8)
-
Step 400
400
#98A876
oklch(70.6% 0.072 122.6)
-
Step 500
500
#7E9352
oklch(63.1% 0.093 123.7)
-
Step 600
600
#687D36
oklch(55.7% 0.1 123.4)
-
Step 700
700
#566928
oklch(49% 0.093 123.5)
-
Step 800
800
#475623
oklch(42.8% 0.077 123.3)
-
Step 900
900
#3B4721
oklch(37.7% 0.061 123.7)
-
Step 950
950 (this color)
#101603
oklch(18.8% 0.038 123.4)
#101603 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) | #181402 | 0.016 |
| Deuteranopia (no green cones) | #171404 | 0.016 |
| Tritanopia (no blue cones) | #111412 | 0.033 |
| Achromatopsia (no color) | #141414 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101603
#101603
oklch(18.8% 0.038 123.4)
- #170F21
#170F21
oklch(18.9% 0.037 303.5)
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 #101603, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.051
- Rich Navy #001219 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.075
- Dark Brown #341C02 ΔE 0.081
- Dark Forest Green #002D04 ΔE 0.086
- Jet #212529 ΔE 0.086
- Very Dark Green #062E03 ΔE 0.089
Use #101603 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.