#245598
Closest named color: Dusk Blue (#26538D). oklch(45.3% 0.122 257.1), rgb(36, 85, 152).
Aa
White text reads best on this color (7.42:1).
About this color
#245598 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.122 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.018 away. White text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.82:1 |
| White text | 7.42:1 |
Values
| HEX | #245598 |
| RGB | rgb(36, 85, 152) |
| HSL | hsl(215, 62%, 37%) |
| OKLCH | oklch(45.3% 0.122 257.1) |
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 #245598 | 7.42:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #245598 | 2.82:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #245598 text on white | 7.42:1 | AAA | Lc 85.5 | Fine for body text |
| #245598 text on black | 2.82:1 | Fails | Lc -16.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A4C3EF
oklch(81% 0.071 257.1)
-
Step 400
400
#72A2E7
oklch(70.6% 0.114 257.4)
-
Step 500
500
#4C89E0
oklch(63% 0.146 257.5)
-
Step 600
600
#2D71CD
oklch(55.5% 0.158 257.2)
-
Step 700
700
#205EB2
oklch(49% 0.148 257.4)
-
Step 800
800 (this color)
#245598
oklch(45.3% 0.122 257.1)
-
Step 900
900
#1D4173
oklch(37.7% 0.095 257.2)
-
Step 950
950
#122643
oklch(26.9% 0.06 257.7)
#245598 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) | #345B9B | 0.025 |
| Deuteranopia (no green cones) | #1E5097 | 0.016 |
| Tritanopia (no blue cones) | #00656F | 0.094 |
| Achromatopsia (no color) | #555555 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245598
#245598
oklch(45.3% 0.122 257.1)
- #734E00
#734E00
oklch(45.3% 0.095 77.4)
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 #245598, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.018
- Denim Blue #3B5B92 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Light Navy #155084 ΔE 0.037
- Cobalt #1E488F ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.042
- Twilight #4E518B ΔE 0.051
- Dusky Blue #475F94 ΔE 0.051
Use #245598 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.