#185590
Closest named color: Dusk Blue (#26538D). oklch(44.4% 0.114 251.6), rgb(24, 85, 144).
Aa
White text reads best on this color (7.66:1).
About this color
#185590 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.114 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.011 away. White text reads best on it, at 7.66:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.74:1 |
| White text | 7.66:1 |
Values
| HEX | #185590 |
| RGB | rgb(24, 85, 144) |
| HSL | hsl(210, 71%, 33%) |
| OKLCH | oklch(44.4% 0.114 251.6) |
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 #185590 | 7.66:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #185590 | 2.74:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #185590 text on white | 7.66:1 | AAA | Lc 86.2 | Fine for body text |
| #185590 text on black | 2.74:1 | Fails | Lc -15.9 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4EB
oklch(80.9% 0.066 252.1)
-
Step 400
400
#6DA5E1
oklch(70.7% 0.106 251.1)
-
Step 500
500
#438DD9
oklch(63.2% 0.137 251.4)
-
Step 600
600
#1F75C6
oklch(55.6% 0.148 251.6)
-
Step 700
700
#0F62AB
oklch(49.1% 0.137 251.5)
-
Step 800
800 (this color)
#185590
oklch(44.4% 0.114 251.6)
-
Step 900
900
#18436F
oklch(37.7% 0.089 251.8)
-
Step 950
950
#0F2841
oklch(27.1% 0.056 250.6)
#185590 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) | #385992 | 0.032 |
| Deuteranopia (no green cones) | #244E8F | 0.020 |
| Tritanopia (no blue cones) | #00636B | 0.085 |
| Achromatopsia (no color) | #535353 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185590
#185590
oklch(44.4% 0.114 251.6)
- #734900
#734900
oklch(44.3% 0.095 71.9)
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 #185590, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.011
- Light Navy #155084 ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.029
- Cobalt #1E488F ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.038
- Peacock Blue #016795 ΔE 0.052
- Denim #3B638C ΔE 0.057
Use #185590 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.