#03100F
Closest named color: Almost Black (#070D0D). oklch(15.9% 0.021 189.5), rgb(3, 16, 15).
Aa
White text reads best on this color (19.35:1).
About this color
#03100F is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.013 away. White text reads best on it, at 19.35:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.08:1 |
| White text | 19.35:1 |
Values
| HEX | #03100F |
| RGB | rgb(3, 16, 15) |
| HSL | hsl(175, 68%, 4%) |
| OKLCH | oklch(15.9% 0.021 189.5) |
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 #03100F | 19.35:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #03100F | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #03100F text on white | 19.35:1 | AAA | Lc 105.6 | Preferred for body text |
| #03100F text on black | 1.08:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#CFDCDB
oklch(88.4% 0.014 191.4)
-
Step 300
300
#AFC6C4
oklch(80.9% 0.025 190.3)
-
Step 400
400
#85A9A6
oklch(70.7% 0.04 190)
-
Step 500
500
#659490
oklch(63.2% 0.051 189.3)
-
Step 600
600
#4B7E7A
oklch(55.6% 0.055 189.3)
-
Step 700
700
#3C6A67
oklch(49% 0.051 190.3)
-
Step 800
800
#325754
oklch(42.8% 0.043 189.1)
-
Step 900
900
#2C4745
oklch(37.6% 0.033 189.9)
-
Step 950
950 (this color)
#03100F
oklch(15.9% 0.021 189.5)
#03100F 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) | #0F0F0F | 0.023 |
| Deuteranopia (no green cones) | #0C0D0F | 0.020 |
| Tritanopia (no blue cones) | #001110 | 0.007 |
| Achromatopsia (no color) | #0E0E0E | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03100F
#03100F
oklch(15.9% 0.021 189.5)
- #15090B
#15090B
oklch(15.9% 0.022 8.9)
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 #03100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.013
- Rich Navy #001219 ΔE 0.020
- Rich Black #0D1B2A ΔE 0.066
- Very Dark Brown #1D0200 ΔE 0.074
- Dark Navy Blue #00022E ΔE 0.088
- Midnight #03012D ΔE 0.089
- Dark Navy #000435 ΔE 0.092
- Very Dark Blue #000133 ΔE 0.096
Use #03100F 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.