#417BA6
Closest named color: Cerulean (#457B9D). oklch(56.2% 0.091 242.8), rgb(65, 123, 166).
Aa
Black text reads best on this color (4.60:1).
About this color
#417BA6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.091 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.014 away. Black text reads best on it, at 4.60:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.60:1 |
| White text | 4.55:1 |
Values
| HEX | #417BA6 |
| RGB | rgb(65, 123, 166) |
| HSL | hsl(206, 44%, 45%) |
| OKLCH | oklch(56.2% 0.091 242.8) |
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 #417BA6 | 4.55:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #417BA6 | 4.60:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #417BA6 text on white | 4.55:1 | AA | Lc 71.5 | Content text, not long reading |
| #417BA6 text on black | 4.60:1 | AA | Lc -30.2 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4D9
oklch(80.8% 0.04 243.6)
-
Step 400
400
#7DA6C6
oklch(70.7% 0.065 242.3)
-
Step 500
500
#5B8FB8
oklch(63% 0.083 243.4)
-
Step 600
600 (this color)
#417BA6
oklch(56.2% 0.091 242.8)
-
Step 700
700
#31668D
oklch(49.2% 0.084 243)
-
Step 800
800
#295372
oklch(42.6% 0.07 242.8)
-
Step 900
900
#26455C
oklch(37.7% 0.054 242.2)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#417BA6 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) | #687BA8 | 0.044 |
| Deuteranopia (no green cones) | #5A71A5 | 0.036 |
| Tritanopia (no blue cones) | #00868A | 0.070 |
| Achromatopsia (no color) | #767676 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #417BA6
#417BA6
oklch(56.2% 0.091 242.8)
- #9B6939
#9B6939
oklch(56.3% 0.091 63)
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 #417BA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.014
- Dull Blue #49759C ΔE 0.020
- Stormy Blue #507B9C ΔE 0.021
- Flat Blue #3C73A8 ΔE 0.026
- Steel Blue #4682B4 ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Nice Blue #107AB0 ΔE 0.032
- Cool Blue #4984B8 ΔE 0.036
Use #417BA6 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.