#010F2F
Closest named color: Dark Navy (#000435). oklch(18% 0.069 260.4), rgb(1, 15, 47).
Aa
White text reads best on this color (18.90:1).
About this color
#010F2F is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.069 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Navy (#000435), ΔE 0.034 away. White text reads best on it, at 18.90:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Navy (#000435) |
| Black text | 1.11:1 |
| White text | 18.90:1 |
Values
| HEX | #010F2F |
| RGB | rgb(1, 15, 47) |
| HSL | hsl(222, 96%, 9%) |
| OKLCH | oklch(18% 0.069 260.4) |
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 #010F2F | 18.90:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #010F2F | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #010F2F text on white | 18.90:1 | AAA | Lc 105.1 | Preferred for body text |
| #010F2F text on black | 1.11:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A3C2F6
oklch(81% 0.081 260.6)
-
Step 400
400
#70A0F1
oklch(70.6% 0.13 260.4)
-
Step 500
500
#4A86EC
oklch(63% 0.166 260.3)
-
Step 600
600
#2D6DDB
oklch(55.6% 0.181 260.5)
-
Step 700
700
#205ABE
oklch(49% 0.169 260.6)
-
Step 800
800
#1C4B99
oklch(42.8% 0.138 260.1)
-
Step 900
900
#1D3F7A
oklch(37.7% 0.108 260.6)
-
Step 950
950 (this color)
#010F2F
oklch(18% 0.069 260.4)
#010F2F 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) | #001330 | 0.013 |
| Deuteranopia (no green cones) | #000F2E | 0.003 |
| Tritanopia (no blue cones) | #00171C | 0.053 |
| Achromatopsia (no color) | #111111 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010F2F
#010F2F
oklch(18% 0.069 260.4)
- #1A0F00
#1A0F00
oklch(17.9% 0.037 79)
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 #010F2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Navy #000435 ΔE 0.034
- Dark Navy Blue #00022E ΔE 0.043
- Very Dark Blue #000133 ΔE 0.044
- Midnight #03012D ΔE 0.045
- Navy Blue #001146 ΔE 0.046
- Rich Navy #001219 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.051
- Night Blue #040348 ΔE 0.054
Use #010F2F 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.