#1051B6
Closest named color: Blue Blue (#2242C7). oklch(46.1% 0.172 259.9), rgb(16, 81, 182).
Aa
White text reads best on this color (7.30:1).
About this color
#1051B6 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.172 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.043 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.172) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #1051B6 |
| RGB | rgb(16, 81, 182) |
| HSL | hsl(217, 84%, 39%) |
| OKLCH | oklch(46.1% 0.172 259.9) |
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 #1051B6 | 7.30:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #1051B6 | 2.87:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #1051B6 text on white | 7.30:1 | AAA | Lc 84.7 | Fine for body text |
| #1051B6 text on black | 2.87:1 | Fails | Lc -17.3 | 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
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C8DAF8
oklch(88.4% 0.046 260.7)
-
Step 300
300
#A1C2F7
oklch(80.9% 0.084 259.8)
-
Step 400
400
#6EA0F3
oklch(70.6% 0.134 260.1)
-
Step 500
500
#4786EF
oklch(63.1% 0.171 260)
-
Step 600
600
#286DDD
oklch(55.6% 0.185 259.9)
-
Step 700
700 (this color)
#1051B6
oklch(46.1% 0.172 259.9)
-
Step 800
800
#194A9B
oklch(42.6% 0.143 260.1)
-
Step 900
900
#1A3F7B
oklch(37.6% 0.111 259.7)
-
Step 950
950
#102548
oklch(26.9% 0.071 260)
#1051B6 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) | #005EBA | 0.034 |
| Deuteranopia (no green cones) | #004FB4 | 0.009 |
| Tritanopia (no blue cones) | #006A7B | 0.131 |
| Achromatopsia (no color) | #565656 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1051B6
#1051B6
oklch(46.1% 0.172 259.9)
- #745100
#745100
oklch(46.1% 0.096 79.8)
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 #1051B6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.043
- Sapphire #2138AB ΔE 0.061
- Cobalt #1E488F ΔE 0.065
- Dusk Blue #26538D ΔE 0.068
- Majorelle Blue #3F37C9 ΔE 0.069
- Mid Blue #276AB3 ΔE 0.073
- Denim Blue #3B5B92 ΔE 0.076
- Blueberry #464196 ΔE 0.076
Use #1051B6 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.