#101641
Closest named color: Navy Blue (#001146). oklch(22.6% 0.081 272.1), rgb(16, 22, 65).
Aa
White text reads best on this color (17.31:1).
About this color
#101641 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.081 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.030 away. White text reads best on it, at 17.31:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.21:1 |
| White text | 17.31:1 |
Values
| HEX | #101641 |
| RGB | rgb(16, 22, 65) |
| HSL | hsl(233, 60%, 16%) |
| OKLCH | oklch(22.6% 0.081 272.1) |
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 #101641 | 17.31:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #101641 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #101641 text on white | 17.31:1 | AAA | Lc 104.0 | Preferred for body text |
| #101641 text on black | 1.21:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CCD8FD
oklch(88.5% 0.053 271.1)
-
Step 300
300
#ABBDFF
oklch(80.9% 0.096 272.3)
-
Step 400
400
#8098FF
oklch(70.7% 0.153 272.1)
-
Step 500
500
#637AFE
oklch(63.1% 0.196 272.1)
-
Step 600
600
#4D5EEE
oklch(55.6% 0.215 272.2)
-
Step 700
700
#3F4CCF
oklch(49% 0.2 272.2)
-
Step 800
800
#3340A7
oklch(42.7% 0.165 271.9)
-
Step 900
900
#2C3884
oklch(37.7% 0.128 272.1)
-
Step 950
950 (this color)
#101641
oklch(22.6% 0.081 272.1)
#101641 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) | #001D42 | 0.025 |
| Deuteranopia (no green cones) | #001840 | 0.020 |
| Tritanopia (no blue cones) | #002128 | 0.069 |
| Achromatopsia (no color) | #1B1B1B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101641
#101641
oklch(22.6% 0.081 272.1)
- #241B00
#241B00
oklch(22.7% 0.046 91.6)
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 #101641, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.030
- Dark Indigo #1F0954 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.050
- Night Blue #040348 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.059
- Dark #1B2431 ΔE 0.064
- Dark Navy #000435 ΔE 0.068
- Midnight Purple #280137 ΔE 0.070
Use #101641 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.