#115DB8
Closest named color: Mid Blue (#276AB3). oklch(48.9% 0.16 256.7), rgb(17, 93, 184).
Aa
White text reads best on this color (6.39:1).
About this color
#115DB8 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.160 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.042 away. White text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.28:1 |
| White text | 6.39:1 |
Values
| HEX | #115DB8 |
| RGB | rgb(17, 93, 184) |
| HSL | hsl(213, 83%, 39%) |
| OKLCH | oklch(48.9% 0.16 256.7) |
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 #115DB8 | 6.39:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #115DB8 | 3.28:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #115DB8 text on white | 6.39:1 | AA | Lc 81.2 | Fine for body text |
| #115DB8 text on black | 3.28:1 | AA large text | Lc -20.7 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A1C3F3
oklch(80.9% 0.078 257)
-
Step 400
400
#6CA2ED
oklch(70.6% 0.125 256.8)
-
Step 500
500
#4389E7
oklch(63.1% 0.158 256.7)
-
Step 600
600
#2171D5
oklch(55.7% 0.171 256.6)
-
Step 700
700 (this color)
#115DB8
oklch(48.9% 0.16 256.7)
-
Step 800
800
#134D95
oklch(42.7% 0.132 256.5)
-
Step 900
900
#184177
oklch(37.8% 0.103 256.6)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#115DB8 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) | #2467BB | 0.031 |
| Deuteranopia (no green cones) | #0058B6 | 0.016 |
| Tritanopia (no blue cones) | #007381 | 0.121 |
| Achromatopsia (no color) | #5F5F5F | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #115DB8
#115DB8
oklch(48.9% 0.16 256.7)
- #805700
#805700
oklch(48.9% 0.102 77.1)
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 #115DB8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.042
- French Blue #436BAD ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.065
- Peacock Blue #016795 ΔE 0.068
- Blue Blue #2242C7 ΔE 0.068
- Dusk Blue #26538D ΔE 0.071
- Dusky Blue #475F94 ΔE 0.072
- Warm Blue #4B57DB ΔE 0.075
Use #115DB8 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.