#030817
Closest named color: Almost Black (#070D0D). oklch(13.8% 0.035 263.1), rgb(3, 8, 23).
Aa
White text reads best on this color (19.98:1).
About this color
#030817 is a very dark, muted blue. In OKLCH its lightness is 14%, its chroma 0.035 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.036 away. White text reads best on it, at 19.98:1.
| Hue family | Blues |
| Lightness | very dark (14%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.05:1 |
| White text | 19.98:1 |
Values
| HEX | #030817 |
| RGB | rgb(3, 8, 23) |
| HSL | hsl(225, 77%, 5%) |
| OKLCH | oklch(13.8% 0.035 263.1) |
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 #030817 | 19.98:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #030817 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #030817 text on white | 19.98:1 | AAA | Lc 105.9 | Preferred for body text |
| #030817 text on black | 1.05:1 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1D9E9
oklch(88.4% 0.024 264.4)
-
Step 300
300
#B3C1DC
oklch(80.9% 0.041 263.6)
-
Step 400
400
#8BA1CB
oklch(70.7% 0.067 263.2)
-
Step 500
500
#6E89BE
oklch(63.1% 0.086 263.3)
-
Step 600
600
#5672AA
oklch(55.5% 0.094 263.4)
-
Step 700
700
#466092
oklch(49.1% 0.087 262.7)
-
Step 800
800
#3A4E76
oklch(42.6% 0.071 263.4)
-
Step 900
900
#32415F
oklch(37.6% 0.055 263.6)
-
Step 950
950 (this color)
#030817
oklch(13.8% 0.035 263.1)
#030817 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) | #030918 | 0.004 |
| Deuteranopia (no green cones) | #020817 | 0.003 |
| Tritanopia (no blue cones) | #000B0E | 0.028 |
| Achromatopsia (no color) | #080808 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #030817
#030817
oklch(13.8% 0.035 263.1)
- #0E0700
#0E0700
oklch(13.6% 0.028 80.9)
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 #030817, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.036
- Rich Navy #001219 ΔE 0.039
- Midnight #03012D ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.055
- Very Dark Blue #000133 ΔE 0.064
- Dark Navy #000435 ΔE 0.064
- Rich Black #0D1B2A ΔE 0.080
- Very Dark Brown #1D0200 ΔE 0.083
Use #030817 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.