#1D5793
Closest named color: Dusk Blue (#26538D). oklch(45.2% 0.115 252.5), rgb(29, 87, 147).
Aa
White text reads best on this color (7.40:1).
About this color
#1D5793 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.115 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.014 away. White text reads best on it, at 7.40:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #1D5793 |
| RGB | rgb(29, 87, 147) |
| HSL | hsl(211, 67%, 35%) |
| OKLCH | oklch(45.2% 0.115 252.5) |
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 #1D5793 | 7.40:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #1D5793 | 2.83:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #1D5793 text on white | 7.40:1 | AAA | Lc 85.3 | Fine for body text |
| #1D5793 text on black | 2.83:1 | Fails | Lc -16.7 | 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
#6EA4E2
oklch(70.6% 0.108 252.7)
-
Step 500
500
#458CD9
oklch(63% 0.137 252.4)
-
Step 600
600
#2275C7
oklch(55.7% 0.149 252.3)
-
Step 700
700
#1361AC
oklch(49% 0.139 252.7)
-
Step 800
800 (this color)
#1D5793
oklch(45.2% 0.115 252.5)
-
Step 900
900
#19436F
oklch(37.7% 0.089 252.2)
-
Step 950
950
#102741
oklch(26.9% 0.057 253.1)
#1D5793 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) | #3A5B95 | 0.031 |
| Deuteranopia (no green cones) | #275192 | 0.017 |
| Tritanopia (no blue cones) | #00656E | 0.085 |
| Achromatopsia (no color) | #555555 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D5793
#1D5793
oklch(45.2% 0.115 252.5)
- #764B00
#764B00
oklch(45.1% 0.097 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 #1D5793, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.014
- Light Navy Blue #2E5A88 ΔE 0.026
- Light Navy #155084 ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.033
- Cobalt #1E488F ΔE 0.043
- Peacock Blue #016795 ΔE 0.046
- Denim #3B638C ΔE 0.051
Use #1D5793 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.