#174563
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.071 241.2), rgb(23, 69, 99).
Aa
White text reads best on this color (10.15:1).
About this color
#174563 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.071 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.022 away. White text reads best on it, at 10.15:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #174563 |
| RGB | rgb(23, 69, 99) |
| HSL | hsl(204, 62%, 24%) |
| OKLCH | oklch(37.4% 0.071 241.2) |
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 #174563 | 10.15:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #174563 | 2.06:1 | Fails | Lc 10.6 | Not readable |
| #174563 text on white | 10.15:1 | AAA | Lc 93.3 | Preferred for body text |
| #174563 text on black | 2.06:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A3C6E0
oklch(81% 0.053 240.5)
-
Step 400
400
#6FA8D1
oklch(70.8% 0.085 240.8)
-
Step 500
500
#4491C5
oklch(63.1% 0.109 241.1)
-
Step 600
600
#1E7AB2
oklch(55.5% 0.119 241.5)
-
Step 700
700
#0C6799
oklch(49.1% 0.11 241)
-
Step 800
800
#11547C
oklch(42.7% 0.091 241.2)
-
Step 900
900 (this color)
#174563
oklch(37.4% 0.071 241.2)
-
Step 950
950
#10293A
oklch(27% 0.044 240.8)
#174563 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) | #374564 | 0.035 |
| Deuteranopia (no green cones) | #2D3E62 | 0.029 |
| Tritanopia (no blue cones) | #004C4F | 0.049 |
| Achromatopsia (no color) | #414141 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174563
#174563
oklch(37.4% 0.071 241.2)
- #5C3714
#5C3714
oklch(37.5% 0.072 60.8)
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 #174563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.022
- Charcoal #264653 ΔE 0.031
- Twilight Blue #0A437A ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.043
- Marine Blue #01386A ΔE 0.049
- Midnight Green #073B4C ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.051
- Dark Teal #014D4E ΔE 0.053
Use #174563 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.