#001725
Closest named color: Rich Black (#0D1B2A). oklch(19.4% 0.042 236.8), rgb(0, 23, 37).
Aa
White text reads best on this color (18.27:1).
About this color
#001725 is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.042 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.027 away. White text reads best on it, at 18.27:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.27:1 |
Values
| HEX | #001725 |
| RGB | rgb(0, 23, 37) |
| HSL | hsl(203, 100%, 7%) |
| OKLCH | oklch(19.4% 0.042 236.8) |
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 #001725 | 18.27:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #001725 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #001725 text on white | 18.27:1 | AAA | Lc 104.8 | Preferred for body text |
| #001725 text on black | 1.14:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A3C6DD
oklch(80.9% 0.05 237)
-
Step 400
400
#6FA8CC
oklch(70.6% 0.08 237.2)
-
Step 500
500
#4492BF
oklch(63% 0.102 236.8)
-
Step 600
600
#1D7CAC
oklch(55.6% 0.111 236.8)
-
Step 700
700
#0C6893
oklch(49% 0.103 236.8)
-
Step 800
800
#115578
oklch(42.7% 0.086 237.3)
-
Step 900
900
#184660
oklch(37.6% 0.066 237.2)
-
Step 950
950 (this color)
#001725
oklch(19.4% 0.042 236.8)
#001725 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) | #101726 | 0.024 |
| Deuteranopia (no green cones) | #0A1325 | 0.019 |
| Tritanopia (no blue cones) | #001B1C | 0.028 |
| Achromatopsia (no color) | #151515 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001725
#001725
oklch(19.4% 0.042 236.8)
- #230F02
#230F02
oklch(19.5% 0.042 55.7)
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 #001725, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.027
- Rich Navy #001219 ΔE 0.028
- Almost Black #070D0D ΔE 0.054
- Dark #1B2431 ΔE 0.067
- Navy Blue #001146 ΔE 0.069
- Dark Navy #000435 ΔE 0.070
- Dark Navy Blue #00022E ΔE 0.076
- Jet #212529 ΔE 0.076
Use #001725 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.