#1799FC
Closest named color: Dodger Blue (#1E90FF). oklch(66.9% 0.178 249), rgb(23, 153, 252).
Aa
Black text reads best on this color (6.99:1).
About this color
#1799FC is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.178 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.025 away. Black text reads best on it, at 6.99:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #1799FC |
| RGB | rgb(23, 153, 252) |
| HSL | hsl(206, 97%, 54%) |
| OKLCH | oklch(66.9% 0.178 249) |
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 #1799FC | 3.00:1 | AA large text | Lc -61.4 | Content text, not long reading |
| Black text on #1799FC | 6.99:1 | AA | Lc 48.0 | Large or bold text, headings |
| #1799FC text on white | 3.00:1 | AA large text | Lc 56.0 | Large or bold text, headings |
| #1799FC text on black | 6.99:1 | AA | Lc -45.7 | Large or bold text, headings |
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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C1DDF8
oklch(88.6% 0.048 247.4)
-
Step 300
300
#95C6F7
oklch(81% 0.087 248.9)
-
Step 400
400
#53A6F3
oklch(70.7% 0.139 248.9)
-
Step 500
500 (this color)
#1799FC
oklch(66.9% 0.178 249)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#012848
oklch(27.1% 0.073 248.6)
#1799FC 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) | #689FFF | 0.057 |
| Deuteranopia (no green cones) | #438CFA | 0.036 |
| Tritanopia (no blue cones) | #00B1BE | 0.128 |
| Achromatopsia (no color) | #959595 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1799FC
#1799FC
oklch(66.9% 0.178 249)
- #CD8100
#CD8100
oklch(66.7% 0.146 68.9)
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 #1799FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.025
- Chefchaouen Blue #4895EF ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.050
- Soft Blue #6488EA ΔE 0.062
- Clear Blue #247AFD ΔE 0.080
- Water Blue #0E87CC ΔE 0.082
- Cornflower #6A79F7 ΔE 0.091
Use #1799FC 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.