#117CEF
Closest named color: Clear Blue (#247AFD). oklch(59.7% 0.194 255.7), rgb(17, 124, 239).
Aa
Black text reads best on this color (5.15:1).
About this color
#117CEF is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.194 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.023 away. Black text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.194) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #117CEF |
| RGB | rgb(17, 124, 239) |
| HSL | hsl(211, 87%, 50%) |
| OKLCH | oklch(59.7% 0.194 255.7) |
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 #117CEF | 4.07:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #117CEF | 5.15:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #117CEF text on white | 4.07:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #117CEF text on black | 5.15:1 | AA | Lc -34.4 | Non-text elements, placeholder text |
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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C3DBFC
oklch(88.4% 0.052 256.4)
-
Step 300
300
#98C4FE
oklch(81% 0.095 255.5)
-
Step 400
400
#5CA2FD
oklch(70.7% 0.152 255.8)
-
Step 500
500 (this color)
#117CEF
oklch(59.7% 0.194 255.7)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBC
oklch(49.2% 0.166 255.7)
-
Step 800
800
#004C9B
oklch(42.6% 0.144 255.8)
-
Step 900
900
#013F82
oklch(37.6% 0.126 255.8)
-
Step 950
950
#06264C
oklch(27% 0.079 255.4)
#117CEF 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) | #3588F3 | 0.039 |
| Deuteranopia (no green cones) | #0075ED | 0.019 |
| Tritanopia (no blue cones) | #0098AA | 0.145 |
| Achromatopsia (no color) | #7E7E7E | 0.194 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #117CEF
#117CEF
oklch(59.7% 0.194 255.7)
- #AA7300
#AA7300
oklch(59.8% 0.126 75.7)
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 #117CEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.023
- Cerulean Blue #056EEE ΔE 0.036
- Royal Blue #4169E1 ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.056
- Bright Blue #0165FC ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.063
- Water Blue #0E87CC ΔE 0.065
- Neon Blue #4361EE ΔE 0.066
Use #117CEF 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.