#105ED0
Closest named color: Azul (#1D5DEC). oklch(51% 0.19 259.5), rgb(16, 94, 208).
Aa
White text reads best on this color (5.94:1).
About this color
#105ED0 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.190 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.044 away. White text reads best on it, at 5.94:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #105ED0 |
| RGB | rgb(16, 94, 208) |
| HSL | hsl(216, 86%, 44%) |
| OKLCH | oklch(51% 0.19 259.5) |
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 #105ED0 | 5.94:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #105ED0 | 3.53:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #105ED0 text on white | 5.94:1 | AA | Lc 78.9 | Fine for body text |
| #105ED0 text on black | 3.53:1 | AA large text | Lc -22.9 | 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 700.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFC
oklch(88.6% 0.051 259.4)
-
Step 300
300
#9DC2FC
oklch(80.8% 0.092 259.2)
-
Step 400
400
#67A0FB
oklch(70.7% 0.147 259.4)
-
Step 500
500
#3C85F9
oklch(63.2% 0.188 259.4)
-
Step 600
600
#166BE8
oklch(55.7% 0.205 259.4)
-
Step 700
700 (this color)
#105ED0
oklch(51% 0.19 259.5)
-
Step 800
800
#0C49A3
oklch(42.8% 0.157 259.4)
-
Step 900
900
#133E81
oklch(37.6% 0.123 259.4)
-
Step 950
950
#0D254C
oklch(27% 0.078 259.7)
#105ED0 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) | #006CD4 | 0.035 |
| Deuteranopia (no green cones) | #005CCE | 0.008 |
| Tritanopia (no blue cones) | #007B8E | 0.145 |
| Achromatopsia (no color) | #646464 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #105ED0
#105ED0
oklch(51% 0.19 259.5)
- #865E00
#865E00
oklch(51.1% 0.106 79.7)
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 #105ED0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.044
- Warm Blue #4B57DB ΔE 0.051
- Royal Blue #4169E1 ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.059
- Mid Blue #276AB3 ΔE 0.060
- Neon Blue #4361EE ΔE 0.062
- Blue Blue #2242C7 ΔE 0.065
- Bright Blue #0165FC ΔE 0.069
Use #105ED0 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.