#12193F
Closest named color: Navy Blue (#001146). oklch(23.2% 0.073 271.7), rgb(18, 25, 63).
Aa
White text reads best on this color (16.98:1).
About this color
#12193F is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.073 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.039 away. White text reads best on it, at 16.98:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 16.98:1 |
Values
| HEX | #12193F |
| RGB | rgb(18, 25, 63) |
| HSL | hsl(231, 56%, 16%) |
| OKLCH | oklch(23.2% 0.073 271.7) |
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 #12193F | 16.98:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #12193F | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #12193F text on white | 16.98:1 | AAA | Lc 103.7 | Preferred for body text |
| #12193F text on black | 1.23:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8FA
oklch(88.5% 0.048 272.4)
-
Step 300
300
#ADBEF9
oklch(81% 0.086 271.9)
-
Step 400
400
#829AF6
oklch(70.7% 0.137 271.4)
-
Step 500
500
#657DF2
oklch(63% 0.176 271.7)
-
Step 600
600
#4F63E1
oklch(55.6% 0.192 271.8)
-
Step 700
700
#4051C3
oklch(49% 0.178 271.7)
-
Step 800
800
#35439E
oklch(42.6% 0.148 272)
-
Step 900
900
#2D3A7E
oklch(37.7% 0.116 271.6)
-
Step 950
950 (this color)
#12193F
oklch(23.2% 0.073 271.7)
#12193F 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) | #031E40 | 0.021 |
| Deuteranopia (no green cones) | #001A3E | 0.022 |
| Tritanopia (no blue cones) | #002229 | 0.061 |
| Achromatopsia (no color) | #1C1C1C | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12193F
#12193F
oklch(23.2% 0.073 271.7)
- #261C00
#261C00
oklch(23.2% 0.047 90)
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 #12193F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.044
- Oxford Blue #1B263B ΔE 0.049
- Dark #1B2431 ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.055
- Night Blue #040348 ΔE 0.063
- Jet #212529 ΔE 0.071
- Midnight Purple #280137 ΔE 0.072
Use #12193F 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.