#010F28
Closest named color: Rich Navy (#001219). oklch(17.3% 0.057 257.2), rgb(1, 15, 40).
Aa
White text reads best on this color (19.08:1).
About this color
#010F28 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.057 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.036 away. White text reads best on it, at 19.08:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 19.08:1 |
Values
| HEX | #010F28 |
| RGB | rgb(1, 15, 40) |
| HSL | hsl(218, 95%, 8%) |
| OKLCH | oklch(17.3% 0.057 257.2) |
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 #010F28 | 19.08:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #010F28 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #010F28 text on white | 19.08:1 | AAA | Lc 105.3 | Preferred for body text |
| #010F28 text on black | 1.10:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300
#A5C3EC
oklch(80.9% 0.067 256.3)
-
Step 400
400
#75A2E3
oklch(70.6% 0.108 257.5)
-
Step 500
500
#508ADB
oklch(63.1% 0.137 257.1)
-
Step 600
600
#3372C9
oklch(55.6% 0.15 257.3)
-
Step 700
700
#255FAD
oklch(49% 0.138 257)
-
Step 800
800
#214E8C
oklch(42.7% 0.114 257.2)
-
Step 900
900
#204170
oklch(37.6% 0.09 257.5)
-
Step 950
950 (this color)
#010F28
oklch(17.3% 0.057 257.2)
#010F28 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) | #021229 | 0.011 |
| Deuteranopia (no green cones) | #000E28 | 0.005 |
| Tritanopia (no blue cones) | #001519 | 0.043 |
| Achromatopsia (no color) | #101010 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010F28
#010F28
oklch(17.3% 0.057 257.2)
- #190D00
#190D00
oklch(17.2% 0.036 74.5)
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 #010F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.036
- Dark Navy #000435 ΔE 0.042
- Dark Navy Blue #00022E ΔE 0.045
- Midnight #03012D ΔE 0.047
- Very Dark Blue #000133 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.050
- Almost Black #070D0D ΔE 0.056
- Navy Blue #001146 ΔE 0.060
Use #010F28 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.