#5988FF
Closest named color: Soft Blue (#6488EA). oklch(65.3% 0.184 265.4), rgb(89, 136, 255).
Aa
Black text reads best on this color (6.39:1).
About this color
#5988FF is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.184 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.033 away. Black text reads best on it, at 6.39:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.39:1 |
| White text | 3.28:1 |
Values
| HEX | #5988FF |
| RGB | rgb(89, 136, 255) |
| HSL | hsl(223, 100%, 67%) |
| OKLCH | oklch(65.3% 0.184 265.4) |
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 #5988FF | 3.28:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #5988FF | 6.39:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #5988FF text on white | 3.28:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #5988FF text on black | 6.39:1 | AA | Lc -41.8 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C9D9FB
oklch(88.4% 0.05 265.4)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400
#759DFA
oklch(70.7% 0.144 265.3)
-
Step 500
500 (this color)
#5988FF
oklch(65.3% 0.184 265.4)
-
Step 600
600
#3967E6
oklch(55.6% 0.199 265.3)
-
Step 700
700
#2C54C8
oklch(49% 0.186 265.4)
-
Step 800
800
#2546A2
oklch(42.8% 0.154 265.3)
-
Step 900
900
#223C80
oklch(37.7% 0.119 265.3)
-
Step 950
950
#14244B
oklch(27.1% 0.075 265)
#5988FF 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) | #4B96FF | 0.036 |
| Deuteranopia (no green cones) | #2787FD | 0.038 |
| Tritanopia (no blue cones) | #00A4B7 | 0.153 |
| Achromatopsia (no color) | #8E8E8E | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5988FF
#5988FF
oklch(65.3% 0.184 265.4)
- #B58800
#B58800
oklch(65.2% 0.134 85)
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 #5988FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.033
- Cornflower #6A79F7 ΔE 0.039
- Dodger Blue #1E90FF ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.050
- Clear Blue #247AFD ΔE 0.059
- Lavender Blue #8B88F8 ΔE 0.062
Use #5988FF 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.